1. Beginnings (Origins: Part 1)
Aired: Aug 30, 1999The history of the Underground is told in detail, from the fall of Mobotropol...
Oct 05, 1999 TV-Y7 22m 6.2
What is supposed to be a vacation for Sonic, Manic and Sonia turns into a battle to save Mobius when Robotnik attacks with his newest weapon - the Flying Fortress.
1. Beginnings (Origins: Part 1)
Aired: Aug 30, 1999The history of the Underground is told in detail, from the fall of Mobotropol...
2. Getting to Know You (Origins: Part 2)
Aired: Aug 31, 1999The Hedgehogs begin to learn the important lessons of what it takes to be a f...
3. Harmony or Something (Origins: Part 3)
Aired: Sep 1, 1999Manic, Sonic and Sonia must end their training early when Robotnik threatens ...
Argus, a captain of the Queen's guard, is captured by Sleet and Dingo before ...
Sonic, Sonia and Manic return to their birthplace, Mobodoon, a beautiful, fes...
Sonia travels to east Mobius to visit her friend Mindy at the LaTour estate.
Sleet and Dingo plan to collect the taxes owed to Robotnik from the Duke of V...
The sinister Robotnik blackmails Cyrus, an old friend of Sonic's, by holding ...
On a trip to Port Mobius, Sonic, Manic and Sonia are told that ships are sink...
Queen Aleena's royal journals are rumored to be buried under a palace in the ...
While lost in the wastelands of Mobius, Sonic, Manic and Sonia stumble upon a...
Sonia is invited to a debutante ball, but before she can be officially announ...
Robotnik organizes a track meet to lure Sonic into a trap.
14. A Hedgehog's Home is Her Castle
Aired: Sep 16, 1999The Hedgehogs receive a message they believe is from their cousin.
The Hedgehogs steal historical artifacts of Mobuis from Robotnik before he ca...
A faction of the Freedom Fighters is wiped out by a swarm of metallic fly-bots.
A speed enhancing fluid deemed Sonic Tonic is created by Robotnik to make him...
The Hedgehogs converge on the Floating Island, in their latest attempt to fin...
As Sonic begins to chow chili dogs for a snack, he finds a message in the sac...
Sonic becomes frustrated that maybe all of their efforts of fighting for free...
Robotnik has his sights set upon Queen Aleena's crown jewel, which glows as i...
22. Three Hedgehogs and a Baby
Aired: Sep 28, 1999Sonic, Manic and Sonia find an abandoned baby in an alley and begin a search ...
Sonic and his siblings travel to the outskirts of Mobius to recruit a tribe o...
Sonic, Manic and Sonia invade Robotnik's lair to retrieve the Hedgehog crest.
25. The Hedgehog in the Iron Mask
Aired: Oct 1, 1999The Hedgehogs latest quest to find their mother takes them to the prison towe...
The Oracle advises the Hedgehogs to undertake a mission which could reveal an...
27. Flying Fortress: Chaos Emerald Crisis Part 1
Aired: Oct 5, 1999What is supposed to be a vacation for Sonic, Manic and Sonia turns into a bat...
28. No Hedgehog Is an Island: Chaos Emerald Crisis Part 2
Aired: Oct 6, 1999Sleet and Dingo escape the Flying Fortress with the Chaos Emerald.
29. New Echidna in Town: Chaos Emerald Crisis Part 3
Aired: Oct 7, 1999Knuckles reluctantly makes a deal with Robotnik to turn over Sonic and his fa...
Robotnik announces that he will marry Queen Aleena in a plot to become the ki...
Queen Aleena advises the Hedgehogs to travel to a valley of Mobius so that th...
Robotnik is using the local hairdresser, Doo-bot, to get information on the c...
A self proclaimed scientist has come to Robotropolis with a device that will ...
Robotnik has arranged a museum exhibit of the Royal family goblets.
The Hedgehogs vacation is interrupted by the news of Robotnik's latest weapon.
On a mission in a distant sector of Robotropolis, the Hedgehogs are informed ...
Robotnik captures Bartleby and uses him as bait to capture Sonia.
Robotnik's new weapon, Art, is the enforcer of Robotropolis new eradication p...
The newly discovered Emerald Peninsula is a perfect place for Robotnik to add...
Sonic and Manic play a game of virtual reality to enhance their pilot skills.
Main Cast
Current Status: Ended
Network: Syndication
Production Countries: France, United States
Genres: Comedy, Adventure, Family, Sci-Fi, Animation, Fantasy, Music, Action, Musical
Sonic Underground: Where to Watch Online?
Currently you are able to watch "Sonic Underground" streaming on Paramount+, Hoopla or for free with ads on Pluto TV, Amazon Freevee. It is also possible to rent or buy on AppleTV, Google Play, YouTube, VUDU online.