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 - 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.
#3 - 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.
Watch Now:Amazon#4 - 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.
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#5 - 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.
Watch Now:Amazon#6 - 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.
#7 - 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.
Watch Now:Amazon#8 - 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.
#9 - 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.
#10 - 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.
#11 - 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.
#12 - 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.
Watch Now:Amazon#13 - 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.
#14 - Friend or Foe?
Season 1 - Episode 16 - Aired 2/28/1999
The band visit the Floating Island in search of their mother. There they meet Knuckles the Echidna, the island's guardian, who has been falsely told by Sleet and Dingo that the Sonic Underground is after the Chaos Emerald. Knuckles jumps to conclusions and while Knuckles and Sonic battle each other, Sleet and Dingo seek to steal the Emerald.
#16 - Artifact
Season 1 - Episode 13 - Aired 2/17/1999
In order to raise money for his own cause, Robotnik auctions off artifacts from the lost city of Mobupinchu. But these artifacts are actually bombs, and they are about to go off.
#17 - The Last Resort
Season 1 - Episode 9 - Aired 2/3/1999
While escaping from Sleet and Dingo, Sonic, Sonia, and Manic come across Lake Valley Resort. Lake Valley Resort is led by Stripes, who believes that making deals with Robotnik is safer than fighting Robotnik. When Robotnik asks if there are any new people staying at Lake Valley Resort, he reveals that Sonic and Manic are there, leaving out Sonia.
#18 - 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.
#19 - Bartleby the Prisoner
Season 1 - Episode 37 - Aired 5/12/1999
Bartleby is placed under arrest for helping out the resistance.
#20 - 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.
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#21 - 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.
#22 - 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.
Watch Now:Amazon#23 - 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.
#24 - 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.
#25 - Sonic Tonic
Season 1 - Episode 15 - Aired 2/24/1999
Using the essence of a rare plant, Robotnik manages to create a potion that could grant Sleet and Dingo the ability to run at the speed of Sonic, but it turns out to have troublesome side-effects just after Sonia and Manic take the serum themselves.
Watch Now:Amazon