The BEST episodes of The Grim Adventures of Billy & Mandy
Every episode of The Grim Adventures of Billy & Mandy ever, ranked from best to worst by thousands of votes from fans of the show. The best episodes of The Grim Adventures of Billy & Mandy!
Featuring the exploits of the Grim Reaper, forced into being the best friend of two children.
#1 - Skeletons in the Water Closet
Season 1 - Episode 2 - Aired 8/24/2001
Billy's mother, Gladys, first notices Grim in Billy's bed, then in the shower and subsequently starts to get panic surges thinking that Billy is in danger. Meanwhile, Harold, Billy's dad, just thinks that Gladys is imagining things. In the end, Gladys ends up going living with Billy's aunt, Sis to try and calm herself down.
#2 - Billy & Mandy Save Christmas
Season 5 - Episode 11 - Aired 12/2/2005
The day before Christmas, Billy, Mandy and Grim go to the shopping mall, where Mandy complains that Santa Claus is just an invention from corporations. However, Grim assures Mandy that Santa is real, and they even went to college together. Then, they decide to travel to the North Pole and meet Santa, but when they arrive Mrs. Claus (Carol Kane) tells them that Santa Claus (Gilbert Gottfried) has been transformed into a vicious vampire. Then, to save Christmas, Mandy and Grim go to stake the Head Vampire, Baron Von Ghoulish (Malcolm McDowell), while Billy remains with Mrs. Claus to look after her. However, it turns out that the cleaning-obsessed Von Ghoulish is not the vampire they are looking for, so they set out to find the Head Head Vampire. Then, Mandy, Grim and Von Ghoulish go back to Santa's workshop where it is revealed that Mrs. Claus is in fact the Head Head Vampire, and it was she who transformed Santa, which she did so she could take a break from all her work. Then, Billy finds holographic instructions to bake cookies, which he gives to the vampire Santa Claus, restoring him to normal. Finally, Mrs. Claus and Mandy prepare for a final confrontation, but Santa arrives on time to reconcile with his wife. In the end, Santa acknowledges he married his wife even though she was a vampire long before they met, and that she has turned him into a vampire many times before, (six or seven times in fact), but he always manages to recover.
#3 - The Show that Dare Not Speak Its Name
Season 7 - Episode 2 - Aired 6/6/2006
When Grim leaves the house to meet someone he met on the internet, Billy looks inside Grim's trunk for something to entertain himself. Then, Billy finds a magical talking Rubik's Cube, which releases the demon Pinface, who has bowling pins in his head (a parody of Pinhead from Hellraiser). Then, Pinface proceeds to call his minions to conquer Earth, but the minions are more interested in throwing a house party. Later, it is revealed that Grim and Pinface already know each other, and Grim even broke up with Pinface's sister. In the end, Billy's father cheats and solves the magical cube by rearranging the stickers, trapping Pinface and his minions inside it again.
#4 - The Wrongest Yard
Season 6 - Episode 8 - Aired 3/20/2006
In order to become cool, Billy and Irwin join a football team, so they won't get bullied anymore. Meanwhile, Mandy took over Mindy's position as the new cheerleader captain.
#5 - A Grim Day
Season 6 - Episode 12 - Aired 3/22/2006
When Grim gets a day off at the same time when Billy visits his grandma and Mandy does her home spa treatment, he spends his time dealing with huge lawn gnomes when Skarr takes his scythe. With both Billy and Mandy busy, he ends up getting help from Mindy and Pud'n.
#6 - Modern Primitives
Season 6 - Episode 6 - Aired 1/27/2006
While Billy was trying to dig his way to the Earth's core, he stumbles upon a frozen caveman. It's Fred Flintstone! Grim and Billy thawed him out of the ice. Grim wants to reap Fred's soul, but Billy wants to keep him as a friend. At school, he presented the caveman to the class. Then Fred goes crazy and kidnaps Mrs. Butterbean.
#7 - Anger Mismanagement
Season 7 - Episode 10 - Aired 3/16/2007
As General Skarr has trouble finding a job, the recruiter tells him to attend anger management classes if he wants to work again. Then, Skarr finds out Mandy and Grim are attending too, Mandy for staring at the school monitor, and Grim for enjoying too much his job. The instructor of the class, Larry, turns out to be a peace-loving, short man riding a tricycle, who teaches the trio ways to calm down when angered, including counting to ten, and using harmless weapons to let go of their anger. In the end, Larry invites Billy to the class, and Mandy, Grim, and Skarr all manage to contain themselves; however, Larry himself suffers an episode of rage over a parking space and he is arrested.
#8 - Short Tall Tales
Season 7 - Episode 17 - Aired 9/21/2007
As Billy, Mandy, and Irwin need to write a school report on tall tales, Grim tells outrageous tall tales about Pecos Billy (based on Pecos Bill), Paula Bunyan (based on Paul Bunyan), and John Henry. In Grim's stories, Pecos Billy (Billy) tames a twister using his personal laser-shooting cow-like spacecraft, saving an Arizona trailer park; Paula Bunyan (Mandy) uses her blue ox companion, Babe, to stomp over a villain, creating the Grand Canyon in the process; John Henry (Irwin) digs through a tunnel so fast that he breaks the laws of Physics and bursts into the "8th dimension". After Grim tells them the stories, Mandy informs Billy and Irwin that he is trying to get them F's.
#9 - Chaos Theory
Season 6 - Episode 11 - Aired 3/21/2006
While at Costmo, the gang finds out that everything is too orderly. After talking to Hoss Delgado about it, they discovered that's because he's dating Eris. There isn't that much chaos anymore. So it's up to them to "stop order from taking over."
#10 - Pandora's Lunch Box
Season 6 - Episode 13 - Aired 3/22/2006
When a girl named Dora comes to Billy and Mandy's school, she and Mandy become instant friends. While watching Mindy and the cheerleaders, Dora tells Mandy that if she opens her lunchbox. There's something that could destroy Mindy. Since Mandy wants to destroy Mindy, she opens the lunchbox, unleashing evil demons shaped like food. It turns out that Dora is actually Pandora, and she tricked Mandy into unleashing all of the demons. Mandy, angry that Dora tricked her, stops the end of the world by sucking the demons and Dora into the lunchbox.
#11 - El Dia de Los Muertos Estupidos
Season 7 - Episode 20 - Aired 11/9/2007
When Billy's dad drives Billy, Mandy and Grim to the hamburger restaurant, they somehow end up in Mexico. There, the people are celebrating Dia de los Muertos, but local kids say it may be the last celebration ever, because Del Uglio, a masked and ugly luchador, is set on stealing the "Golden Nose of Chipotle", a prehispanic relic on which the festivity is based. To get to the nose, Del Uglio has one half of the map, while the other half is held by his lost twin brother, who turns out to be Billy. In the end, Grim defeats Del Uglio, but it is Mandy who keeps the golden nose for herself, which makes her rich.
#12 - Billy & Mandy Moon the Moon
Season 7 - Episode 15 - Aired 5/28/2007
When Billy is sent to bed after playing with his Dr. Brainiac action figure, he wishes he had an adventure. Then, he notices a strange light outside and wanders into a corn field to investigate; there, he encounters Sperg, and they are both abducted by aliens who experiment with them. Later, when they return home, it is revealed that Sperg has a bomb implanted in his head, and also that there is a shortage of dairy products; Billy explains that the aliens are stealing Earth's dairy products because they are werewolf-like creatures who need cheese, and they have already mined all the cheese in the Moon. In the following, Billy's crazy story is confirmed when too many UFOs appear. Then, Billy says they must assemble a team of diary superheroes, the Green Squeaker (Billy), Milk Mandy, the Cheese Reaper, and Diary Boy (Sperg), to combat the aliens, but everybody is opposed to the idea. Later, the four of them have been captured and are sent to the Moon to be destroyed, but they escape and try to stop the Moon ship from getting to Earth. At that time, the Moon aliens start their transformation into werewolves, and they bite Billy, who becomes a werewolf too. With their backs to the wall, Grim finally chooses to give Billy, Mandy and himself their dairy superpowers. Meanwhile, Sperg sacrifices himself by letting the bomb in his head explode in the control room, thus crashing the spaceship in the Moon and saving Earth. A final segment shows what happened to Billy, Mandy, Grim, Sperg, Dr. Brainiac, and even the Moon people, that remain attempting to destroy the humans by extracting their brains to steal their knowledge after they discussed and revealed their master plan to escape with Endsville's supply of cheese while showing images of the characters from the other shows in the the crossover Cartoon Network Invaded which meant that they were the masterminds behind the entire event.This was the fifth and final chapter of Cartoon Network Invaded which also concluded with an
#13 - The Greatest Love Story Ever Told Ever
Season 7 - Episode 13 - Aired 4/6/2007
When Irwin lacks the courage to ask Mandy to go with him to the Valentine's Day school dance, he tells Nergal Jr. to do it for him. Then, Mandy mistakes Junior's invitation for his own, and surprisingly accepts to go with him, which naturally makes Irwin jealous. Then, with the ill advice received from his father, to be possessive with Mandy, at the dance Junior becomes overprotective of her, that eventually he and Irwin start fighting, throwing punch at each other and ruining the ball. In the end, it is revealed that this was Mandy's true intention all along so that no one could enjoy Valentine's Day.
#14 - Waking Nightmare
Season 7 - Episode 11 - Aired 3/23/2007
When Mandy finds Billy playing with Grim's gigantic dog, Cerberus, she tells Grim to keep Billy under tight control because she needs a good night of sleep to be ready for the next day's test. Then, with a little persuasion from his own dad, Billy tries to wake up Mandy at night, so she will fail the test and he can score higher than her for the first time. After Grim spends the night guarding Mandy's house from Billy, the latter apparently succeeds in waking up Mandy. However, it is revealed that this Mandy is in fact Irwin, used as a decoy by the real Mandy, who slept in her dog's house. In the end, Mandy passes the test, and Grim is punished for not guarding her properly.
#15 - Reap Walking
Season 5 - Episode 6 - Aired 10/7/2005
When the mall's surveillance cameras capture Grim's silhouette attacking endangered owls, a naturalist named Corey Nebraska blames Grim for the attacks, while Mandy suspects Grim is sleepwalking again. Then Billy, Mandy and Nebraska follow Grim while he sleepwalks, but they realize it is actually Gladys, Billy's mom, the one attacking the owls. When discovered, Gladys reveals her hatred toward the owls as she recounts the story on how an owl ate her pet rat, Sniffles, years ago. In the end, Billy's dad reveals that he was in fact the one who ate Sniffles merely to survive until lunch time. Note: this is the only episode without a title card
#16 - Mommy Fiercest
Season 5 - Episode 4 - Aired 8/12/2005
When Billy's mom, Gladys, discovers crow's feet on her face, she panics and doesn't want to leave the bathroom. As Grim needs to use the bathroom, he uses his scythe to make Gladys a young girl again, thus without wrinkles. Then, Gladys goes to see Billy, but neither he nor Mandy nor Irwin recognize her, and instead, Billy calls her "Corn", because of the white bread she gave him. Then, when Corn tells Billy to do his homework, Mandy tells him to go to the movie theater instead. In consequence, Corn and Mandy struggle over who gets to control Billy. In the end, Billy's father, Harold, plays with Grim's scythe and also becomes a child; he then goes to the movies and gets together with Gladys (Corn) again.
#17 - The Secret Snake Club
Season 4 - Episode 1 - Aired 2/25/2005
At school, Billy, Mandy and Irwin look for a club to join. Irwin plans to join the Macrame club in order to meet girls; Billy inquires on the Junior CIA club, which forcefully recruits him; Mandy joins the "Secret Snake Club", a snake-themed club consisting of three geeks. In their headquarters, the nerds reveal that their "secret agenda" is to resurrect Shnissugah, a giant snake which lived hundreds of years ago in Canada, to take revenge against the popular kids, but they lack the power of the Underworld to do so. Then, Mandy calls for Grim, who proceeds to revive Shnissugah through the internet. In the end, Billy, as a junior agent of the CIA, stops a criminal plan by Irwin, who was using the Macrame club for personal gain; and Shnissugah turns out to be a tiny, 8-cm (3.14-in) long, harmless snake.
#18 - Dumb Luck
Season 3 - Episode 3 - Aired 6/18/2004
After spilling salt in a restaurant, and not throwing salt over his left shoulder, Billy starts having an unusual amount of bad luck. The next day, Grim analyzes Billy and finds out he has a "Catastrophe Snail" attached to his brain, which is causing him the bad luck.
#19 - Spidermandy
Season 6 - Episode 21 - Aired 7/24/2006
When Billy finds his "son" Jeff the Spider lying in his bed with "Spider Pox", he goes to Mandy for help to get rid of the giant spider. While ignoring Billy, the next morning Mandy awakens afflicted by Spider Pox too, developing four additional arms and the ability to produce spider web. Later, Mandy's condition progresses and she completely turns into a giant spider, who then captures Billy's parents and Grim. Then, Grim tells Billy that, to cure Mandy, he must use the venom of the spider that infected her. In the end, while Billy successfully gives Mandy Jeff's venom, he also carried the virus and infected the people of the city, who all turned into spiders.
#20 - Hurter Monkey
Season 6 - Episode 19 - Aired 7/10/2006
When Mandy says even a trained monkey is more competent to do cleaning chores than Grim, and would complain less, Grim makes Dickie Galoot, a monkey appearing in a Japanese-styled animation, come to life to prove her wrong. Then, as Dickie turns out to be extremely good at cleaning Mandy's house, Grim decides to leave the kids for good; however, due to his friendship contract, Grim is unable to break free, and so he is forced to battle Dickie to recover his place as the "cleaning monkey" of the group. In the end, Grim successfully defeats Dickie at cleaning Billy's house, but this all turns out to be an ingenious plan devised by Mandy to win a bet against Billy.
#21 - Dad Day Afternoon
Season 6 - Episode 17 - Aired 6/5/2006
As Billy and Mandy celebrate Father's Day, Grim becomes very depressed that he sits inside Billy's closet only listening to country rock music. Then, Grim explains that, since his own father cared more about country rock than about him, he has been living a lie, telling his father he is a famous country rock singer, and not the actual Grim Reaper. Then, Mandy arranges for Grim's dad to come visit and she tells him the truth, but still the old man doesn't believe her. Grim decides that the only way for his dad to listen to him is while performing country music. Then, at an outdoor concert, Billy, Mandy and Grim start performing a country rock song, in which eventually Grim reveals his supernatural powers. In the end, Grim's dad accepts his son is the Reaper, but still doesn't forgive him.
#22 - Dumb-Dumbs & Dragons
Season 6 - Episode 15 - Aired 5/12/2006
As Billy sees Hoss Delgado's manliness is action again, Billy wishes to grow up to be like him, in other words, to be a hero. Then, Grim tells Billy that in older times an evident way to become a hero was to slay a dragon, so they travel to the Middle Ages so Billy can train under the supervision of the best dragon slayer, Sir Boss Del Guapo, who resembles the present time Delgado. In the end, Billy becomes friends with the dragon he was supposed to kill and spares his life, becoming the dragon's hero. Also, Del Guapo finds himself transported to the present, where he has brief encounter with Delgado.
#23 - Billy and Mandy vs. the Martians
Season 6 - Episode 14 - Aired 3/23/2006
When Billy destroys Grim's favorite childhood toy, Fancy Jake, Grim feels devastated and wishes he had never lost the limbo game that made him become Billy and Mandy's friend. Then, a lawyer appears saying that although the game is legally binding while all parties remain on Earth, it is not if Grim leaves Earth. In consequence, Grim follows the lawyer's advice, opens a portal, and leaves. Then, with Grim travelling aboard his spaceship, the lawyer takes off his disguise and introduces himself as Morg, the Martian Grim Reaper, who is also Emperor of Mars and commands an army of martian, brain-eating zombies. Then, so Grim can get the respect he deserves, Morg convinces Grim to conquer Earth, which they do easily while enslaving and turning all the people into zombies. Next for the reapers is to use the ultimate weapon in mind control, the Braincaster, which, if powered by a dumb mind, will allow them to control all the zombies forever. Meanwhile, Billy, Mandy and Irwin, who followed Grim to Mars hidden in his bottomless trunk, look for a way to save Earth. Then, when the kids are captured, and Billy is strapped to the Braincaster, all hope seems lost; however, at the last minute Billy talks to Grim about friendship, and Grim has a change of heart and decides to help Mandy. In the end, Billy's stupid brain overpowers the Braincaster, returning all the people to normal and foiling Morg's plan, who disappears into outer space.
#24 - Toadblatt's School of Sorcery
Season 2 - Episode 1 - Aired 6/13/2003
In a parody of the Harry Potter series, Grim sends Billy and Mandy to a sorcery school so the latter duo could avoid boring summer camps they were supposed to go to. The sorcery school is owned by Dean Toadblatt, an anthropomorphic frog. Billy and Mandy are sent to the most hated house on the school, Weaselthorpe, while Grim becomes a prefect for a more loved house, Gunderstank. Billy and Mandy then team up with boy wizard Nigel Planter to sabotage Gunderstank. During the episode, Planter takes all the credit for the sabotage (which was Mandy's idea in the first place), but in the end, he is punished for it once he is "accidentally" found out by Toadblatt.
#25 - Educating Grim
Season 2 - Episode 2 - Aired 6/13/2003
Billy and Mandy take a reluctant Grim to school with them. There, Mandy's nemesis, Mindy, befriends Grim to annoy Mandy. In consequence, Billy calls for their other friend, who is Abraham Lincoln. In the end, Mandy devises a plan in which Mindy ditches Grim, and keeps Abraham as her friend instead.