The quest for the elusive Mother leads the Sonic gang to the mystical Floating Island, where they converge in their relentless pursuit of answers.
1. Beginnings (Origins, Part 1)
Aired: Aug 30, 1999The next episode will delve into the dramatic story of Mobotropolis's collaps...
Aired: Aug 31, 1999The Hedgehogs embark on a path of self-discovery, exploring the fundamental v...
Aired: Sep 1, 1999The Oracle's life is in peril as Robotnik's latest plan puts a key resistance...
Aired: Sep 2, 1999Captain Argus of the Queen's guard is ambushed and taken captive by Sleet and...
Aired: Sep 3, 1999The next episode follows Sonic, Sonia, and Manic as they return to their home...
Aired: Sep 6, 1999Sonia embarks on a heart-pumping journey to East Mobius, where she arrives at...
Aired: Sep 7, 1999Sneaky Sleet and Dingo concoct a plan to deceive the Duke of Velcronia, actua...
Aired: Sep 8, 1999Cyrus, a close friend of Sonic's, is forced to work against his will as Dr. R...
Aired: Sep 9, 1999In the next episode, three siblings embark on a thrilling adventure to Port M...
Aired: Sep 10, 1999The long-lost royal journals of Queen Aleena are hidden beneath the ancient s...
Aired: Sep 13, 1999Sonic, Manic, and Sonia find themselves stranded in the desolate wastelands o...
12. A Hedgehog's Home Is Her Castle
Aired: Sep 14, 1999Sonia's debutante ball invitation is put on hold as she joins her brothers on...
Aired: Sep 15, 1999Sonic is lured into a trap at a track meet hosted by Dr. Robotnik, where the ...
Aired: Sep 16, 1999A mysterious message from a long-lost relative sends the Hedgehogs on a suspe...
Aired: Sep 17, 1999The Hedgehogs pull off a daring heist, snatching valuable historical treasure...
Aired: Sep 20, 1999A relentless horde of metallic fly-bots launches a devastating assault, leavi...
Aired: Sep 21, 1999Dr. Robotnik develops a groundbreaking speed-enhancing formula called Sonic T...
Aired: Sep 22, 1999The quest for the elusive Mother leads the Sonic gang to the mystical Floatin...
Aired: Sep 23, 1999Sonic's snack time is disrupted by a cryptic message from his mother, propell...
20. Three Hedgehogs and a Baby
Aired: Sep 24, 1999Sonic's conviction begins to waver as he questions the tangible impact of the...
Aired: Sep 27, 1999Robotnik fixates on Queen Aleena's most precious possession, a radiant crown ...
Aired: Sep 28, 1999A trio embarks on a desperate search to reunite an abandoned infant with its ...
Aired: Sep 29, 1999Sonic and his siblings venture to the farthest reaches of Mobius to rally a n...
Aired: Sep 30, 1999The three siblings, Sonic, Manic, and Sonia, launch a daring mission to infil...
25. Flying Fortress (Chaos Emerald Crisis, Part 1)
Aired: Oct 1, 1999Sonic and his friends embark on a quest to locate their mother, which takes t...
Aired: Oct 4, 1999Sonic and his friends embark on a perilous journey to uncover the secrets of ...
27. No Hedgehog Is an Island (Chaos Emerald Crisis, Part 2)
Aired: Oct 5, 1999Three siblings, Sonic, Manic, and Sonia, find their serene getaway disrupted ...
28. Getting to Know You (Origins, Part 2)
Aired: Oct 6, 1999Sleet and Dingo orchestrate a daring heist, pilfering the coveted Chaos Emera...
29. New Echidna in Town (Chaos Emerald Crisis, Part 3)
Aired: Oct 7, 1999Knuckles brokers a pivotal agreement with Robotnik, surrendering his allegian...
30. Harmony or Something (Origins, Part 3)
Aired: Oct 8, 1999Robotnik's plan to conquer Mobius is disrupted when he unexpectedly proposes ...
Aired: Oct 11, 1999Sonic and his friends embark on a mission to Mobius' valley to broker a peace...
Aired: Oct 12, 1999The next episode sees Dr. Robotnik deploy a cunning new ally, Doo-bot, a tale...
Aired: Oct 13, 1999A renowned inventor brings a revolutionary technology to Robotropolis, promis...
Aired: Oct 14, 1999A group of friends, led by Sonic, launch an exciting quest to expose the trut...
Aired: Oct 15, 1999The Sonic Hedgehog family's peaceful vacation is disrupted by ominous reports...
Aired: Oct 18, 1999In the distant sector of Robotropolis, a group of freedom fighters has vanish...
Aired: Oct 19, 1999Robotnik concocts a scheme, kidnapping Bartleby to ensnare Sonia in his sinis...
Aired: Oct 20, 1999A sinister new weapon, Art, is deployed by Robotnik to mercilessly eliminate ...
Aired: Oct 21, 1999The next episode sees Robotnik unleashing his ambition to dominate the Emeral...
Aired: Oct 22, 1999Sonic and Manic engage in a thrilling virtual reality battle, putting their p...
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Main Cast
Network: TF1
Production Countries: France, United States
At the present time, viewers have the opportunity to enjoy "Sonic Underground" completely free of charge, though with occasional advertisements, on the following streaming platforms: Pluto TV.
