What happens when children outgrow their imaginary friends? They take them to Madame Foster's Home for Imaginary Friends, a vast Victorian mansion with endless rooms and hundreds of thought-up playmates. At the heart of the story is Blooregard (aka Bloo), an imaginary friend created by an eight-year-old boy named Mac. Although he's usually shy, Mac feels confident when Bloo's around. Bloo, on the other hand, is bold and self-assured, and often gets himself into a mess by acting before he thinks. Follow the adventures of Mac and Bloo in a world where imaginary friends actually come to life. Nothing is ever mundane when you hang out at "Foster's Home for Imaginary Friends"!
Bloo goes with Madame Foster in a hurry, thinking that they'll join the rest of the crew at the annual county fair, but that shortcut finds both Blooregard and Madame Foster at a fabric store.
Mac enters a contest to win a trip to Europe. But when the gang tries to pack at the last second, everyone has delays that keep the gang from going. While at the same time, Mac is getting more upset. Will Mac and his friends be able to make their flight to Europe on time?
A retelling of "The Big Cheese" from the view of a little pea, who against all odds, helps Frankie turn a negative into a positive.
When the Fosters gang goes to a swap meet, Edwardo gets his hands on a $100 bill after a thief loses it. Everyone gets greedy and they want the bill causing chaos.
Bloo has a reputation for being a funny imaginary friend, though his jokes sometimes offend people. When Bloo cracks a joke about a new imaginary friend's height, the new guy challenges him to meet him outside at 4 o'clock. Will Bloo manage to find a way to dodge the challenge or will he have to face the consequences of his joke and possibly be severely injured?
A new imaginary friend has come to Foster's, but he keeps misbehaving all around the house. All other imaginary friends are taking the blame. That is, until Bloo comes up with his master plan!
Tickets won in a radio contest cause a rift between Mac, Bloo, and Frankie
After visiting a retirement home, Blooregard wants to leave Madame Foster's and move there. To do that he takes a bath long enough to be all pruned.
When a pen that looks like Abraham Lincoln is caught with a student cheating on a test by Mac's teacher, he is saved by Mac and Blooregard along with his au pair, a green ogre type. The Lincoln pen cons Madame Foster into a new plan to adopt an overcrowded home to unsuspecting adoptors for a fee, then take over the house and plan to turn the home into a casino. Mac finds this out the hard way as Wilt becomes a flagpole and Eduardo becomes a shell of his former self, as it were, and is put with Mr. Herriman and Frankie in a locked closet. What will Bloo do to save the house, and will Madame Foster get control of the house back?
Mac asks Jackie Khones to help him see who took his library card and took out a book from the library and having it be overdue.
Mr. Herriman becomes addicted to carrots. Meanwhile, Bloo tries desperately to avoid eating Frankie's "it" by doing bad things, but Mr. Herriman ignores or misinterprets the bad deeds and sends everyone else to bed with no supper instead. Also, Frankie learns to cook "it" under the guiding (and painful) wooden spoon of Madame Foster.
Blooregard believes that Mac, even at his age, is getting married.
A 30-mile trip back to Foster's from the Prize Hive turns into an outrageous race with viewers deciding the winner online at cartoonnetwork.com by playing "Big Shot Checkers" between May 19th, 2008 and the original airdate of May 29th, 2008.
Bloo befriends a rich kid named Barry Bling, heir to a paddleball fortune, but things don't seem what they ought to be for Mac.
After beating Mac's high score in a video game, Bloo goes to rub it in his face at school. But he is horrified when he comes to the conclusion that Mac is a nerd. When Mac arrives, Bloo quickly works to make Mac cool, but none of their ideas work. But just as Mac says he doesn't care about being cool, the coolest kid in the school, Jamez Withazee tells him that the fact that he doesn't want to be cool, makes him cool, and invites him to 'The Rock.' As Mac is not at Foster's at 3 o' clock because Jamez tells him that Foster's is for nerds, Mr. Herriman is very quick to ensure that Bloo gets adopted. Now Bloo must find Mac, while at the same time avoiding adoption! Will bloo find Mac before he gets adopted?
In her sleep, Goo accidentally creates all the villain characters from a make believe game that she had helped out on while the power was out at the home during a thunderstorm, who then imprison Mac and Bloo at the home. Now, the gang must finish the game to save their friends.
Frankie is tired of working without being thanked. One day, a toy box is discovered at Foster's front door. Frankie is ordered to take it to the attic and leave it alone, but she knows there is an imaginary friend trapped inside, and opens the box to find it. When she looks inside, she falls into a strange imaginary world. There, she gets treated like a princess by a mysterious imaginary friend. After tackling certain bizarre toy box trials and tribulations, Bloo, Mac, Wilt, Eduardo, and Coco discover Frankie's whereabouts and set out to rescue her from this strange world. This is the first and only episode to have a TV-PG rating.
Watch Now:AmazoniTunesWhen a field trip to a water park is cancelled because of rain, the gang decides to upload videos to the internet.
Bloo, along with the rest of the Imaginary Friends (besides Edwardo) and Frankie, plan a surprise party for Mac. However, Mac wants no part of it.
As a new day begins at Foster's, with everyone enjoying their favorite television program, The Loved and the Loveless, a new friend named Berry enters the house as sweet as can be, though with one glance on Bloo became love struck and determined to make Bloo love her back, though there is one thing that truthfully stands between her and Bloo, and that is Mac. When Mac and Bloo are trying to win a world record, Berry gets mad. After many schemes to try to get rid of Mac, Berry tries to tell Bloo that Mac is stopping him from winning the world record. When Bloo says that to Mac, he gets mad and dosen't want to break a world record anymore. But Berry makes Bloo the almost world's largest rubber band ball and both of them will put the last rubber band to make it the biggest. Meanwhile, Mac is running to Foster's so Bloo and Mac can put on the last rubber band, but will Mac get there in time before Berry and Bloo put on the rubber band?
When a hoard of imaginary Santas enter the house, Mac starts to believe that there is no such thing as Santa Claus. Bloo decided to try to prove him wrong, in hopes of getting the real Santa to deliver him more presents, so they go about trying several experiments that would logically prove Santa is real. Will Mac be able to regain his faith in Santa Claus or will this be the worst Christmas ever for Foster’s and Mac alike?
When Eduardo tells little white lies to those at the nursery, including a little child named Scrappy that admires Eduardo, he has to cover them up before they catch up to him.
Duchess is adopted by Mac's neighbors, and Foster's doesn't want to take her back. Meanwhile, Terrence told Mac that his mom is thinking about moving to Singapore. It's up to Mac and Bloo to get rid of Duchess. They try to frame Duchess for what they did to their home, but it only makes the family love Duchess even more. Mac and Bloo have no choice but to return her back to Foster's. However, Terrence decides to help the others back at Foster's Home to keep Duchess away.
Richie Wildebrat, a kid at Mac's School, keeps braging about his imaginary friend, Blake Superior, and he keeps bragging about him winning the imaginary friend talent show pageant. Mac wants to beat him so it can end Richie's bragging, so he asks Bloo to enter in the pageant, but Bloo doesn't want to, then he gets the hiccups, which Blake says is ridiculous, so Bloo enters. How is Bloo going to beat Blake Superior with his hiccups?