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Episode guide

Sonic Underground: Season 1

Poster for Sonic Underground Season 1

40 episodes · first aired Aug 30, 1999

TMDB has no overview for this season.

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  1. 1 Beginnings (Origins, Part 1) Aug 30, 1999 · 21m The history of the Underground is told in detail, from the fall of Mobotropolis to the rise of Robotnik. Included, is a prophecy, as told by the Oracle of Delphius, that caused Queen…
  2. 2 To Catch a Queen Aug 31, 1999 · 21m The Hedgehogs begin to learn the important lessons of what it takes to be a freedom fighter.
  3. 3 Mobodoon Sep 1, 1999 · 21m Manic, Sonic and Sonia must end their training early when Robotnik threatens the Oracle and takes a member of the resistance hostage.
  4. 4 The Price of Freedom Sep 2, 1999 · 21m Sonia travels to east Mobius to visit her friend Mindy at the LaTour Estate. After being given a watch by her friend Mindy, Sonia discovers that these popular timepieces are really…
  5. 5 Underground Masquerade Sep 3, 1999 · 21m Sleet and Dingo plan to collect the taxes owed to Robotnik from the Duke of Velcronia but keep it for themselves. To avoid the wrath of Robotnik, Sleet and Dingo infiltrate the Underground…
  6. 6 Tangled Webs Sep 6, 1999 · 21m The sinister Robotnik blackmails Cyrus, an old friend of Sonic's, by holding his father hostage. Robotnik makes Cyrus gain the Hedgehogs trust and then has Cyrus convince them to save his…
  7. 7 The Deepest Fear Sep 7, 1999 · 21m On a trip to Port Mobius, Sonic, Manic and Sonia are told that ships are sinking due to the Mobian sea-beast. The legendary story becomes fishy when the Hedgehogs meet Captain Squeegee who…
  8. 8 Who Do You Think You Are Sep 8, 1999 · 21m Queen Aleena's royal journals are rumored to be buried under a palace in the city of Tashistan. As Sonic and his siblings scour the city in search of the scrolls, Sonia gets into trouble…
  9. 9 The Last Resort Sep 9, 1999 · 21m While lost in the wastelands of Mobius, Sonic, Manic and Sonia stumble upon an oasis called Lake Valley Resort. Although Sonic is impressed with the beauty of this safe haven, he has a…
  10. 10 Come Out Wherever You Are Sep 10, 1999 · 21m Sonia is invited to a debutante ball, but before she can be officially announced to society, she and her brothers, Manic and Sonic have an important mission. Robotnik has constructed an…
  11. 11 Winner Fakes All Sep 13, 1999 · 21m Robotnik organizes a track meet to lure Sonic into a trap. Robotnik is sure that Sonic will not sit out on a challenge of quickness. Sonia and Manic are also aware of Sonic's competitive…
  12. 12 A Hedgehog's Home Is Her Castle Sep 14, 1999 · 21m The Hedgehogs receive a message they believe is from their cousin. In the message, a castle is left to Sonia, who revels in the idea of having a castle for the Underground headquarters…
  13. 13 Artifact Sep 15, 1999 · 21m The Hedgehogs steal historical artifacts of Mobuis from Robotnik before he can pawn them off at an auction. Sonic and Sonia take one of the pieces to a university professor who informs…
  14. 14 Bug! Sep 16, 1999 · 21m A faction of the Freedom Fighters is wiped out by a swarm of metallic fly-bots. When Manic goes in search of the insects, he is stung with serum, making him loyal to Robotnik. Sonia finds…
  15. 15 Sonic Tonic Sep 17, 1999 · 21m A speed enhancing fluid deemed Sonic Tonic is created by Robotnik to make him as fast as Sonic so that he may finally catch him. Robinik's plan is successful and Sonic is captured, yet…
  16. 16 Friend or Foe? Sep 20, 1999 · 21m The Hedgehogs converge on the Floating Island, in their latest attempt to find their Mother. Sleet and Dingo also have an interest in this island that involves the Chaos Emerald, which is…
  17. 17 Head Games Sep 21, 1999 · 21m As Sonic begins to chow chili dogs for a snack, he finds a message in the sack from his mother urging him to head to Speedster Island. When he, his brother and his sister arrive, what they…
  18. 18 When in Rome... Sep 22, 1999 · 21m Sonic becomes frustrated that maybe all of their efforts of fighting for freedom seem futile. Sonia suggests that they go to Oracle, the spiritual guide, to put everything into…
  19. 19 The Jewel of the Crown Sep 23, 1999 · 21m Robotnik has his sights set upon Queen Aleena's crown jewel, which glows as it is moved closer her. Sonic, Manic and Sonia plan to recover the jewel from the merchant owner before…
  20. 20 Three Hedgehogs and a Baby Sep 24, 1999 · 21m Sonic, Manic and Sonia find an abandoned baby in an alley and begin a search for the baby's parents. Manic grows particularly fond of the child and decides that instead of taking the baby…
  21. 21 Dunes Day Sep 27, 1999 · 21m Sonic and his siblings travel to the outskirts of Mobius to recruit a tribe of nomads for the Resistance. The Hedgehogs van breaks down and they are saved by the tribesman. Once they…
  22. 22 Mummy Dearest Sep 28, 1999 · 21m Sonic, Manic and Sonia invade Robotnik's lair to retrieve the Hedgehog crest. After the book is reclaimed, they discover that this book contains directions to a scroll that could be an…
  23. 23 Hedgehog in the Iron Mask Sep 29, 1999 · 21m The Hedgehogs latest quest to find their mother takes them to the prison tower where they encounter a masked stranger who insists he is family. This stranger is actually being used as bait…
  24. 24 Six Is a Crowd Sep 30, 1999 · 21m The Oracle advises the Hedgehogs to undertake a mission which could reveal answers about their future. Sonic, Manic and Sonia are thrown into a universe that almost seems to parallel their…
  25. 25 Flying Fortress (Chaos Emerald Crisis, Part 1) Oct 1, 1999 · 21m 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. Sonic investigates the…
  26. 26 Wedding Bell Blues Oct 4, 1999 · 21m Robotnik announces that he will marry Queen Aleena in a plot to become the king of Mobius. Upon hearing the alarming news and shocked that their enemy will become their stepfather, Sonic…
  27. 27 No Hedgehog Is an Island (Chaos Emerald Crisis, Part 2) Oct 5, 1999 · 21m Sleet and Dingo escape the Flying Fortress with the Chaos Emerald. In a fight over who will control the Emerald's power, Sleet and Dingo drop and break the Emerald in two. Instantly, a…
  28. 28 Getting to Know You (Origins, Part 2) Oct 6, 1999 · 21m The Hedgehogs begin to learn the important lessons of what it takes to be a freedom fighter. The Oracle provides teachers to guide Sonic, Manic and Sonia to develop the necessary skills to…
  29. 29 New Echidna in Town (Chaos Emerald Crisis, Part 3) Oct 7, 1999 · 21m Knuckles reluctantly makes a deal with Robotnik to turn over Sonic and his family in exchange for finding the Chaos Emerald that will save Mobius. Knuckles soon regrets that he ever…
  30. 30 Harmony or Something (Origins, Part 3) Oct 8, 1999 · 21m Manic, Sonic, Sonia must end their training early when Robotnik threatens the Oracle and takes a member of the resistance hostage. During the rescue mission, the Hedgehogs fall into…
  31. 31 Country Crisis Oct 11, 1999 · 21m Queen Aleena advises the Hedgehogs to travel to a valley of Mobius so that they can bring about peace between two contingents of the resistance that have split. In the meantime, Robotnik…
  32. 32 Haircraft in Space Oct 12, 1999 · 21m Robotnik is using the local hairdresser, Doo-bot, to get information on the citizens that are against him. Sonia becomes a victim of the Doo-bots trance during a shampoo and while under…
  33. 33 Healer Oct 13, 1999 · 21m A self proclaimed scientist has come to Robotropolis with a device that will reverse the effects of Robotnik's roboticizer. Sonia, Manic and Sonia attend a demonstration of this new…
  34. 34 Sonia's Choice Oct 14, 1999 · 21m Robotnik has arranged a museum exhibit of the Royal family goblets. Knowing that Sonic, Sonia and Manic will want to reclaim their family's treasures, Robotnik expects the heirlooms will…
  35. 35 The Big Melt Oct 15, 1999 · 21m The Hedgehogs vacation is interrupted by the news of Robotnik's latest weapon. They are shocked as the submarine melts the icy landscape from under their feet. The Hedgehogs then scurry to…
  36. 36 Sleepers Oct 18, 1999 · 21m On a mission in a distant sector of Robotropolis, the Hedgehogs are informed that freedom fighters have disappeared and are going to be roboticized. Sonic races to save his friends, but he…
  37. 37 Bartleby the Prisoner Oct 19, 1999 · 21m Robotnik's new weapon, Art, is the enforcer of Robotropolis new eradication policy. Art's objective is to destroy everything in sight, including Sonic, Manic and Sonia. The giant…
  38. 38 The Art of Destruction Oct 20, 1999 · 21m Robotnik's new weapon, Art, is the enforcer of Robotropolis new eradication policy. Art's objective is to destroy everything in sight, including Sonic, Manic and Sonia. The giant…
  39. 39 The Pendant Oct 21, 1999 · 21m The newly discovered Emerald Peninsula is a perfect place for Robotnik to add slaves to his empire. Sonic, Sonia and Manic are alerted of Robotnik's plan to transplant the peninsula's…
  40. 40 Virtual Danger Oct 22, 1999 · 21m Sonic and Manic play a game of virtual reality to enhance their pilot skills. When the two brothers decide to put their practice to use, they fly in a successful mission that intercepts a…