The long-lost royal journals of Queen Aleena are believed to be hidden beneath the ancient palace in Tashistan, waiting to be uncovered.
1. Beginnings (Origins: Part 1)
Aired: Aug 30, 1999The saga of the Underground unfolds, tracing the decline of Mobotropolis and ...
2. Getting to Know You (Origins: Part 2)
Aired: Aug 31, 1999The Hedgehogs embark on a journey of self-discovery, uncovering the crucial a...
3. Harmony or Something (Origins: Part 3)
Aired: Sep 1, 1999Sonic, Manic, and Sonia rush to stop Robotnik's sinister plan, as he puts the...
Aired: Sep 2, 1999 Argus, captain of the Queen's guard, falls into enemy hands when Sleet and Di...
Aired: Sep 3, 1999 Next episode, Sonic, Sonia, and Manic head back to their hometown of Mobodoon...
Aired: Sep 6, 1999 Sonia embarks on a journey to East Mobius, arriving at the esteemed LaTour es...
Aired: Sep 7, 1999 Sneaky Sleet and Dingo concoct a plan to swindle the Duke of Velcronia out of...
Aired: Sep 8, 1999 Sonic's old friend Cyrus is forced to surrender to Robotnik's demands as he h...
Aired: Sep 9, 1999 Sonic, Manic, and Sonia embark on a perilous journey to Port Mobius, where th...
Aired: Sep 10, 1999 The long-lost royal journals of Queen Aleena are believed to be hidden beneat...
Aired: Sep 13, 1999 Sonic, Manic, and Sonia find themselves in the middle of the arid wastelands ...
Aired: Sep 14, 1999 Sonia receives a debutante ball invitation, but her brothers, Manic and Sonic...
Aired: Sep 15, 1999 Sonic is lured into a trap by Robotnik's clever plan to host a track meet, un...
14. A Hedgehog's Home is Her Castle
Aired: Sep 16, 1999The Hedgehogs receive a mysterious message that appears to be from a long-los...
Aired: Sep 17, 1999 The next episode follows the Hedgehogs as they pull off a daring heist, snatc...
Aired: Sep 20, 1999 A devastating attack by a swarm of metallic fly-bots decimates a faction of t...
Aired: Sep 21, 1999 A revolutionary speed-boosting serum called Sonic Tonic is concocted by Dr. R...
Aired: Sep 22, 1999 The Sonic gang unites on the enigmatic Floating Island, driven by their unwav...
Aired: Sep 23, 1999 Sonic is interrupted from his chili dog snack by a mysterious message from hi...
Aired: Sep 24, 1999 Sonic's determination to fight for freedom begins to waver as he questions th...
Aired: Sep 27, 1999 The next episode's plot thickens as Robotnik sets his sights on Queen Aleena'...
22. Three Hedgehogs and a Baby
Aired: Sep 28, 1999The trio discovers an abandoned infant in an alley and embark on a mission to...
Aired: Sep 29, 1999 The next episode follows Sonic and his siblings as they venture to the periph...
Aired: Sep 30, 1999 The brothers Sonic, Manic, and Sonia embark on a daring mission to infiltrate...
25. The Hedgehog in the Iron Mask
Aired: Oct 1, 1999The Hedgehogs embark on a new mission to locate their mother, leading them to...
Aired: Oct 4, 1999 The Hedgehogs embark on a perilous quest to uncover the secrets of their dest...
27. Flying Fortress: Chaos Emerald Crisis Part 1
Aired: Oct 5, 1999Sonic, Manic, and Sonia's relaxing getaway takes an unexpected turn as they m...
28. No Hedgehog Is an Island: Chaos Emerald Crisis Part 2
Aired: Oct 6, 1999In the next thrilling episode, Sleet and Dingo pull off a daring heist, fleei...
29. New Echidna in Town: Chaos Emerald Crisis Part 3
Aired: Oct 7, 1999Knuckles agrees to betray Sonic and his family to Robotnik in exchange for th...
Aired: Oct 8, 1999 Robotnik's plan to conquer Mobius takes an unexpected turn as he announces hi...
Aired: Oct 11, 1999 The Hedgehogs embark on a mission to a valley on Mobius, where they aim to br...
Aired: Oct 12, 1999 In the next episode, Dr. Robotnik employs the cunning Doo-bot, a local hairdr...
Aired: Oct 13, 1999 A charismatic inventor arrives in Robotropolis, boasting a revolutionary devi...
Aired: Oct 14, 1999 The next episode features a sinister plot by Dr. Robotnik, who has mastermind...
Aired: Oct 15, 1999 The Sonic Hedgehog family's peaceful getaway is suddenly disrupted by the omi...
Aired: Oct 18, 1999 The Hedgehogs embark on a perilous mission to a distant sector of Robotropoli...
Aired: Oct 19, 1999 In the next thrilling episode, Robotnik's sinister plan unfolds as he capture...
Aired: Oct 20, 1999 Robotnik unleashes a new tool of terror, Art, to ruthlessly enforce the eradi...
Aired: Oct 21, 1999 Robotnik seeks to expand his dominion by establishing a new territory, the Em...
Aired: Oct 22, 1999 In the next thrilling episode, Sonic and Manic engage in a high-tech virtual ...
Main Cast
Current Status: Ended
Network: TF1
Production Countries: France, United States
Genres:Comedy, Adventure, Family, Sci-Fi, Animation, Fantasy, Music, Action, Musical
Currently you are able to watch "Sonic Underground" for free with ads on Tubi TV, Pluto TV, Amazon Freevee, The Roku Channel, Plex, Paramount+. It is also possible to rent or buy on AppleTV, Google Play, YouTube, VUDU online.
