1. Beginnings (Origins: Part 1)
Aired: Aug 30, 1999 The history of the Underground is told in detail, from the fall of Mobotropol...
2. Getting to Know You (Origins: Part 2)
Aired: Aug 31, 1999 The 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, 1999 Manic, Sonic and Sonia must end their training early when Robotnik threatens ...
4. To Catch a Queen
Aired: Sep 2, 1999 Argus, a captain of the Queen's guard, is captured by Sleet and Dingo before ...
5. Mobodoon
Aired: Sep 3, 1999 Sonic, Sonia and Manic return to their birthplace, Mobodoon, a beautiful, fes...
6. The Price of Freedom
Aired: Sep 6, 1999 Sonia travels to east Mobius to visit her friend Mindy at the LaTour estate.
7. Underground Masquerade
Aired: Sep 7, 1999 Sleet and Dingo plan to collect the taxes owed to Robotnik from the Duke of V...
8. Tangled Webs
Aired: Sep 8, 1999 The sinister Robotnik blackmails Cyrus, an old friend of Sonic's, by holding ...
9. The Deepest Fear
Aired: Sep 9, 1999 On a trip to Port Mobius, Sonic, Manic and Sonia are told that ships are sink...
10. Who Do You Think You Are?
Aired: Sep 10, 1999 Queen Aleena's royal journals are rumored to be buried under a palace in the ...
11. The Last Resort
Aired: Sep 13, 1999 While lost in the wastelands of Mobius, Sonic, Manic and Sonia stumble upon a...
12. Come Out Wherever You Are
Aired: Sep 14, 1999 Sonia is invited to a debutante ball, but before she can be officially announ...
13. Winner Fakes All
Aired: Sep 15, 1999 Robotnik organizes a track meet to lure Sonic into a trap.
14. A Hedgehog's Home is Her Castle
Aired: Sep 16, 1999 The Hedgehogs receive a message they believe is from their cousin.
15. Artifact
Aired: Sep 17, 1999 The Hedgehogs steal historical artifacts of Mobuis from Robotnik before he ca...
16. Bug!
Aired: Sep 20, 1999 A faction of the Freedom Fighters is wiped out by a swarm of metallic fly-bots.
17. Sonic Tonic
Aired: Sep 21, 1999 A speed enhancing fluid deemed Sonic Tonic is created by Robotnik to make him...
18. Friend or Foe
Aired: Sep 22, 1999 The Hedgehogs converge on the Floating Island, in their latest attempt to fin...
19. Head Games
Aired: Sep 23, 1999 As Sonic begins to chow chili dogs for a snack, he finds a message in the sac...
20. When in Rome
Aired: Sep 24, 1999 Sonic becomes frustrated that maybe all of their efforts of fighting for free...
21. The Jewel in the Crown
Aired: Sep 27, 1999 Robotnik has his sights set upon Queen Aleena's crown jewel, which glows as i...
22. Three Hedgehogs and a Baby
Aired: Sep 28, 1999 Sonic, Manic and Sonia find an abandoned baby in an alley and begin a search ...
23. Dunes Day
Aired: Sep 29, 1999 Sonic and his siblings travel to the outskirts of Mobius to recruit a tribe o...
24. Mummy Dearest
Aired: Sep 30, 1999 Sonic, Manic and Sonia invade Robotnik's lair to retrieve the Hedgehog crest.
25. The Hedgehog in the Iron Mask
Aired: Oct 1, 1999 The Hedgehogs latest quest to find their mother takes them to the prison towe...
26. Six Is a Crowd
Aired: Oct 4, 1999 The Oracle advises the Hedgehogs to undertake a mission which could reveal an...
27. Flying Fortress: Chaos Emerald Crisis Part 1
Aired: Oct 5, 1999 What 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, 1999 Sleet and Dingo escape the Flying Fortress with the Chaos Emerald.
29. New Echidna in Town: Chaos Emerald Crisis Part 3
Aired: Oct 7, 1999 Knuckles reluctantly makes a deal with Robotnik to turn over Sonic and his fa...
30. Wedding Bell Blues
Aired: Oct 8, 1999 Robotnik announces that he will marry Queen Aleena in a plot to become the ki...
31. Country Crisis
Aired: Oct 11, 1999 Queen Aleena advises the Hedgehogs to travel to a valley of Mobius so that th...
32. Haircraft in Space
Aired: Oct 12, 1999 Robotnik is using the local hairdresser, Doo-bot, to get information on the c...
33. Healer
Aired: Oct 13, 1999 A self proclaimed scientist has come to Robotropolis with a device that will ...
34. Sonia's Choice
Aired: Oct 14, 1999 Robotnik has arranged a museum exhibit of the Royal family goblets.
35. The Big Melt
Aired: Oct 15, 1999 The Hedgehogs vacation is interrupted by the news of Robotnik's latest weapon.
36. Sleepers
Aired: Oct 18, 1999 On a mission in a distant sector of Robotropolis, the Hedgehogs are informed ...
37. Bartleby the Prisoner
Aired: Oct 19, 1999 Robotnik captures Bartleby and uses him as bait to capture Sonia.
38. Art of Destruction
Aired: Oct 20, 1999 Robotnik's new weapon, Art, is the enforcer of Robotropolis new eradication p...
39. The Pendant
Aired: Oct 21, 1999 The newly discovered Emerald Peninsula is a perfect place for Robotnik to add...
40. Virtual Danger
Aired: Oct 22, 1999 Sonic and Manic play a game of virtual reality to enhance their pilot skills.
