Sonic Underground

The BEST episodes of Sonic Underground

Every episode ever - ranked by fan votes!

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.

Last Updated: 4/25/2022Network: Syfy
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Wedding Bell Blues
star
8.00
5 votes

#1 - Wedding Bell Blues

Season 1 - Episode 30 - Aired 10/4/1999

When Robotnik announces he plans to marry Queen Aleena, the shocked sonic siblings race to the rescue, unaware it's a trap..

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Virtual Danger
star
7.83
6 votes

#2 - Virtual Danger

Season 1 - Episode 40 - Aired 10/22/1999

Sonic and Manic are introduced playing "Castle Conquest", a game of virtual reality, in order to enhance their pilot skills. After the two brothers are trapped in the game by Robotnik, it's up to Sonia to play the game to save her brothers.

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Flying Fortress (Chaos Emerald Crisis, Part 1)
star
7.80
5 votes

#3 - Flying Fortress (Chaos Emerald Crisis, Part 1)

Season 1 - Episode 27 - Aired 10/1/1999

Robotnik creates a new flying fortress to lay waste to the planet. When the Sonic Underground suspects that the Chaos Emerald is keeping the fortress aloft, they head to the Floating Island to enlist the help of Knuckles. But we all know how hard-headed Knuckles is...

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Beginnings (Origins, Part 1)
star
7.79
67 votes

#4 - Beginnings (Origins, Part 1)

Season 1 - Episode 1 - Aired 8/30/1999

Queen Aleena tells the story of how Dr. Robotnik took over, Mobius, and how she had to give up her children [Manix, Sonia, and Sonic] to help fulfil a prophecy exclaiming that one day, the siblings will be able to rise against Robotnik's rule and restore peace to the planet..

Watch Now:AmazoniTunes
Come Out Wherever You Are
star
7.67
6 votes

#5 - Come Out Wherever You Are

Season 1 - Episode 12 - Aired 9/10/1999

Sonia has been invited to a debutante ball, arranged by none other than Robitnik's right hand man Bartleby! Sonic helps her in getting there without being caught, but even more problems arise when Cyrus chooses her to fly the captives of the ""Predator"" to safety...

Watch Now:AmazoniTunes
New Echidna in Town (Chaos Emerald Crisis, Part 3)
star
7.60
5 votes

#6 - New Echidna in Town (Chaos Emerald Crisis, Part 3)

Season 1 - Episode 29 - Aired 10/7/1999

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..

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Six is a Crowd
star
7.50
4 votes

#7 - Six is a Crowd

Season 1 - Episode 26 - Aired 9/30/1999

In this episode, the Sonic Underground go and see the Oracle (again), who sends them to an alternate dimension, where they are the bad guys, and Robotnik is the good guy! But once Robotnik is on their side, they may be able to overthrow the bad hedgehogs and restore Mobotropolis to its former glory!

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No Hedgehog is an Island (Chaos Emerald Crisis, Part 2)
star
7.50
4 votes

#8 - No Hedgehog is an Island (Chaos Emerald Crisis, Part 2)

Season 1 - Episode 28 - Aired 10/5/1999

After taking off with the Chaos Emerald, Sleet and Dingo have a quibble over it, ending with Dingo accidentally breaking it and unleashing all the chaos energy. The Sonic Underground and Knuckles are off to talk to Knuckles' grandfather Athair for advice on handling the situation. But with all the chaos energy tearing apart the planet, can they survive long enough to make it? And even if they do, will they listen to the wise echidna's words?

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Getting to Know You (Origins, Part 2)
star
7.50
20 votes

#9 - Getting to Know You (Origins, Part 2)

Season 1 - Episode 2 - Aired 10/6/1999

The newly reunited Sonic Siblings must learn to work as a team if they are to do battle with Robotnik. But do they really know each other well enough?

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Mummy Dearest
star
7.43
7 votes

#10 - Mummy Dearest

Season 1 - Episode 24 - Aired 9/28/1999

After stealing back a book engraved with the royal seal from Robotnik, the sonic trio discover that a prophet had foreseen Robotnik's takeover of Mobius, and has also foreseen his defeat! To even more surprise, it is revealed that the prophet also wrote down what he had foreseen on a scroll, which sonic and his sibling's quest for. The journey takes them through the treacherous Mobius desert [sandopolis or whatever you want to call it] and many perils and traps. But the underground prevail and locate the temple where the scroll was long hidden. In the meantime, sleet and Dingo, also find the temple, and pretty soon, the stage is set for a battle to decide the future of mobius..

Watch Now:Amazon
Dunes Day
star
7.40
5 votes

#11 - Dunes Day

Season 1 - Episode 23 - Aired 9/27/1999

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.

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Country Crisis
star
7.40
5 votes

#12 - Country Crisis

Season 1 - Episode 31 - Aired 10/11/1999

The Sonic Underground are on a mission to stop a group of hillbillies from feuding so they can stop Robotnik's dam-building project from flooding the countryside.

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Haircraft in Space
star
7.40
5 votes

#13 - Haircraft in Space

Season 1 - Episode 32 - Aired 10/12/1999

A salon robot is hypnotising people that go to her salon into revealing deep secrets. When Sonia goes, she spills information about the resistance! Can she and her brothers keep Robotnik from getting the information?

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The Pendant
star
7.40
5 votes

#14 - The Pendant

Season 1 - Episode 39 - Aired 10/21/1999

Sonia finds a magic pendant that threatens to turn her invisible.

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The Deepest Fear
star
7.00
7 votes

#15 - The Deepest Fear

Season 1 - Episode 9 - Aired 9/7/1999

On a trip to Port Mobius Sonic, Manic and Sonia are told that ships are sinking due to the Mobian sea-beast Moby Deep. The hedgehogs also meet Captain Squeege who informs them of a scam in which the townspeople must rely on Robotnik for protection from the sea monster. In reality it is Robotnik who is sinking the ships. Sonic is urged to overcome his fear of water and the monster to find the truth and end the fears of the seaside town.

Watch Now:AmazoniTunes
Who Do You Think You Are
star
7.00
7 votes

#16 - Who Do You Think You Are

Season 1 - Episode 10 - Aired 9/8/1999

The Sonic Underground arrive in Mobia in search of the Queen's Journal. In the city Sonia loses her memory and meets Raphi, one of the town's resistance...

Watch Now:AmazoniTunes
Winner Fakes All
star
7.00
5 votes

#17 - Winner Fakes All

Season 1 - Episode 13 - Aired 9/13/1999

Robotnik has created a super-fast robot, and he's organised a race for the top athletes of Mobius and the robot. But it's all a trap to drive Sonic out into the open... can he resist the competition?

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Bug!
star
7.00
4 votes

#18 - Bug!

Season 1 - Episode 16 - Aired 9/16/1999

The band finds a village that has been destroyed by its Freedom Fighter occupants. Why has this happened? It seems to be something to do with the Flybots all over the desert, as Manic finds out when he's injected with a mind-control toxin.

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The Hedgehog in the Iron Mask
star
7.00
6 votes

#19 - The Hedgehog in the Iron Mask

Season 1 - Episode 25 - Aired 9/29/1999

In this episode the Sonic Underground rescue a prisoner from one of Robotnik's old prisoners - a hedgehog wearing a mask (so you can't see his face properly). The prisoner claims he is the hedgehogs uncle, the twin brother of Queen Aleena! But it is all just a sinister plan by Robotnik to split the Sonic Underground up.

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The Art of Destruction
star
7.00
4 votes

#20 - The Art of Destruction

Season 1 - Episode 38 - Aired 10/20/1999

The Sonic Underground come across ART, Robotnik's most powerful robot ever, that can think and learn for itself. But ART soon learns the power of friendship...

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To Catch a Queen
star
6.92
13 votes

#21 - To Catch a Queen

Season 1 - Episode 4 - Aired 8/31/1999

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, the Sonic trio race to the rescue..

Watch Now:AmazoniTunes
Harmony or Something (Origins, Part 3)
star
6.77
13 votes

#22 - Harmony or Something (Origins, Part 3)

Season 1 - Episode 3 - Aired 10/8/1999

Sonic, Sonia and Manic put their training to the test as they embark on a mission to rescue the Oracle from Robotnik! Can they work together in harmony, or will their lacking seal their own doom?

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Artifact
star
6.75
4 votes

#23 - Artifact

Season 1 - Episode 15 - Aired 9/15/1999

In order to make a lot of money, Robotnik sells artifacts to the nobility of Mobius. But these artifacts are actually from more recent history; they are bombs, and they're about to go off.

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Sonic Tonic
star
6.75
4 votes

#24 - Sonic Tonic

Season 1 - Episode 17 - Aired 9/17/1999

Using the essence of a rare plant, Robotnik manages to make Sleet and Dingo fast-- maybe even faster than Sonic. The Sonic Underground manage to get hold of it, but can Sonia and Manic resist the temptation of taking the drug themselves and being as fast as Sonic?

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Head Games
star
6.75
4 votes

#25 - Head Games

Season 1 - Episode 19 - Aired 9/21/1999

Queen Aleena sends her children over to Speedster Island, a place Bartleby is trying to turn into a holiday resort. Sleet and Dingo are pretending to help, but they just want to robotocise the islanders, who worship three stone heads that resemble Sonic, Sonia and Manic.

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