The BEST episodes of Sonic Underground
Every episode of Sonic Underground ever, ranked from best to worst by thousands of votes from fans of the show. The best episodes of Sonic Underground!
Sonic, Sonia, and Manic are the children of Queen Aleena Hedgehog, the rightful ruler of Mobius, and are pursued relentlessly by Doctor Robotnik and his bumbling bounty hunters sidekicks, Sleet and Dingo. As infants, the siblings were separated and placed in hiding to fulfill a prophecy made by the Oracle of Delphius that the triplets would grow up to find their estranged mother, overthrow Robotnik, and take their places once more as Mobius' rightful rulers.
#1 - Beginnings (Origins, Part 1)
Season 1 - Episode 1 - Aired 4/4/1999
Queen Aleena Hedgehog tells the story of how Dr. Robotnik took over planet Mobius and how she had to give up her three children Sonic, Sonia, and Manic to fulfill a prophecy that one day the siblings will be able to rise against Robotnik's rule and restore peace to the planet.
#2 - Country Crisis
Season 1 - Episode 31 - Aired 4/21/1999
The Sonic Underground are on a mission to stop a group of hillbillies from feuding so they can stop Robotnik's building project from flooding the countryside.
#3 - Mummy Dearest
Season 1 - Episode 22 - Aired 3/21/1999
The Sonic Underground journey through the treacherous Mobian desert as they try to locate a hidden temple filled with prophecies of Robotnik's defeat.
#4 - The Hedgehog in the Iron Mask
Season 1 - Episode 23 - Aired 3/24/1999
The Sonic Underground rescue a prisoner from one of Robotnik's towers – a hedgehog wearing a mask. The prisoner claims he is the hedgehogs' uncle and twin brother of Queen Aleena. It is a sinister plot by Robotnik to split the Sonic Underground up.
#5 - Six is a Crowd
Season 1 - Episode 24 - Aired 3/28/1999
The hedgehogs visit the Oracle again. He sends them to an alternate dimension where they are tyrannical rulers of Mobius and Robotnik is the leader of the Freedom Fighters. They must defeat their corrupted selves and restore peace to Mobotropolis.
#6 - Flying Fortress (Chaos Emerald Crisis, Part 1)
Season 1 - Episode 25 - Aired 3/31/1999
Robotnik creates a new flying fortress to lay waste to the planet. When the Sonic Underground suspect that a Chaos Emerald is keeping the fortress aloft, they head to the Floating Island to enlist the help of Knuckles. Sleet and Dingo steal the Emerald before the group can reach it, causing the fortress to fall into the sea.
#7 - Wedding Bell Blues
Season 1 - Episode 26 - Aired 1/6/1999
Dr. Robotnik plots to become the king of Mobius. His first attempt was to marry Queen Aleena, which did not work due to the limited amount of money Robotnik had. His second attempt was to adopt Queen Aleena's daughter Sonia. In order to do this, he had Sleet and Dingo capture all of the hedgehogs and give Sonia to Robotnik so he could adopt her. Robotnik was almost successful until Queen Aleena demanded Robotnik not to adopt her.
#8 - No Hedgehog is an Island (Chaos Emerald Crisis, Part 2)
Season 1 - Episode 27 - Aired 4/7/1999
After taking off with the Chaos Emerald, Dingo accidentally breaks it, unleashing the chaos energy inside. The Sonic Underground and Knuckles set off to talk to Knuckles' great-grandfather Athair for advice on handling the situation. Athair advises them to make an alliance with Robotnik.
#9 - Getting to Know You (Origins, Part 2)
Season 1 - Episode 28 - Aired 4/11/1999
The newly reunited Hedgehog siblings must learn to work as a team if they are to do battle with Robotnik.
#10 - New Echidna in Town (Chaos Emerald Crisis, Part 3)
Season 1 - Episode 29 - Aired 4/14/1999
Knuckles bargains with Robotnik in order to recover and repair the Chaos Emerald before Mobius is destroyed, but to acquire the villain's help, the echidna must betray the hedgehogs. After rescuing his friends from the roboticizer, Knuckles and the Sonic Underground must now combat Dingo transformed by the chaos energy into a monster.
#11 - Harmony or Something (Origins, Part 3)
Season 1 - Episode 30 - Aired 4/18/1999
Sonic, Sonia and Manic go on a mission to rescue the Oracle from Robotnik.
#12 - Dunes Day
Season 1 - Episode 21 - Aired 3/17/1999
The Sonic Underground come across a nomadic tribe whilst journeying through the desert. Manic claims to not trust the tribe's leader "Ifyoucan". He sets off to find out the truth and uncovers a shocking secret.
#13 - Haircraft in Space
Season 1 - Episode 32 - Aired 4/25/1999
A salon robot is hypnotizing people that go to her salon into revealing deep secrets. When Sonia goes there, she reveals the location of their new base.
#14 - Healer
Season 1 - Episode 33 - Aired 4/28/1999
A Mobian named Titus creates a machine that can de-robotisize robots called the De-Roboticizer.
#15 - Sonia's Choice
Season 1 - Episode 34 - Aired 5/2/1999
Robotnik is about to auction four royal goblets in Anèz. When the hedgehogs take the goblets back, Sonic and Manic are captured. At both ends of the city are Roboticizers with one of Sonia's brothers inside.
#16 - The Big Melt
Season 1 - Episode 35 - Aired 5/5/1999
What started as a vacation for Sonic, Sonia and Manic gets ruined by Dr. Robotnik when he comes up with a plan – to melt the polar ice caps. Sonia gets split up from the group and mistaken for Queen Sauna by a group of penguins who are having troubles of their own.
#17 - Sleepers
Season 1 - Episode 36 - Aired 5/9/1999
Robotnik invents a new dart that induces sleep and sends them after the resistance. The hedgehogs attempt to stop them from the source. Manic is hit by the sleeper darts. After destroying the sleepers, they attempt to destroy the fuel source in the Bad Lands' Mine.
#18 - Bartleby the Prisoner
Season 1 - Episode 37 - Aired 5/12/1999
Bartleby is placed under arrest for helping out the resistance.
#19 - The Art of Destruction
Season 1 - Episode 38 - Aired 5/16/1999
The Sonic Underground come across ARTT (Artificial Robot Thought Technology), Robotnik's new robot that can think and learn for itself. ARTT soon learns the power of friendship and switches to the Resistance. This gives Sleet the opportunity to finish off ARTT and the hedgehogs before time runs out.
#20 - The Pendant
Season 1 - Episode 39 - Aired 5/19/1999
While combating Sleet and Dingo in the newly discovered Emerald Peninsula, Sonia finds a magic pendant that threatens to turn her invisible. Sonic and Manic race against time to find the cure to this seemingly irreversible spell before Sonia disappears forever.
#21 - Virtual Danger
Season 1 - Episode 40 - Aired 5/23/1999
Sonic and Manic get addicted to a new video game that is hindering Cyrus' plan to infiltrate Robotnik's base. Sonic and Manic soon find out Robotnik is behind everything and is ready to eliminate them.
#22 - Winner Fakes All
Season 1 - Episode 11 - Aired 2/10/1999
Robotnik has created a super-fast robot and he's organized a race for the top athletes of Mobius and the robot.
#23 - To Catch a Queen
Season 1 - Episode 2 - Aired 1/10/1999
Argus, the former captain of the Queen's guard, arranges a secret meeting with her but he is soon intercepted by Robotnik's bounty hunters, Sleet and Dingo, who have every intention of feeding the soldier to the Roboticizer. Then Sonic, Sonia, and Manic attempt to rescue him.
#24 - Mobodoon
Season 1 - Episode 3 - Aired 1/13/1999
While evading Sleet and Dingo, the hedgehogs find themselves in a town completely untainted by Robotnik where Sonic and his siblings find the people to be nice, and the food is free. After using the Power Stone, the siblings discover that this is where they were born. Manic starts to become attached to the place and reports that this is where he wants to stay.
#25 - The Price of Freedom
Season 1 - Episode 4 - Aired 1/17/1999
Sonia, after getting dirty on one of her missions, drives to East Mobius; Sonic and Manic follow her after receiving news that Queen Aleena had been spotted there. There, Sonia is reunited with her best friend, Mindy LaTour, and her father. Mindy gives Sonia a watch. Unknown to the girls though, the timepiece is a tracking device designed by Robotnik. Sonia finds out, and soon, Mindy's estate is swarming with similar wristwatch-style robots, all being programmed to capture the hedgehogs.