- Eps 1: Beginnings (Origins, Part 1)
- Eps 2: To Catch a Queen
- Eps 3: Mobodoon
- Eps 4: The Price of Freedom
- Eps 5: Underground Masquerade
- Eps 6: Tangled Webs
- Eps 7: The Deepest Fear
- Eps 8: Who Do You Think You Are
- Eps 9: The Last Resort
- Eps 10: Come Out Wherever You Are
- Eps 11: Winner Fakes All
- Eps 12: A Hedgehog's Home Is Her Castle
- Eps 13: Artifact
- Eps 14: Bug!
- Eps 15: Sonic Tonic
- Eps 16: Friend or Foe?
- Eps 17: Head Games
- Eps 18: When in Rome...
- Eps 19: The Jewel of the Crown
- Eps 20: Three Hedgehogs and a Baby
- Eps 21: Dunes Day
- Eps 22: Mummy Dearest
- Eps 23: Hedgehog in the Iron Mask
- Eps 24: Six Is a Crowd
- Eps 25: Flying Fortress (Chaos Emerald Crisis, Part 1)
- Eps 26: Wedding Bell Blues
- Eps 27: No Hedgehog Is an Island (Chaos Emerald Crisis, Part 2)
- Eps 28: Getting to Know You (Origins, Part 2)
- Eps 29: New Echidna in Town (Chaos Emerald Crisis, Part 3)
- Eps 30: Harmony or Something (Origins, Part 3)
- Eps 31: Country Crisis
- Eps 32: Haircraft in Space
- Eps 33: Healer
- Eps 34: Sonia's Choice
- Eps 35: The Big Melt
- Eps 36: Sleepers
- Eps 37: Bartleby the Prisoner
- Eps 38: The Art of Destruction
- Eps 39: The Pendant
- Eps 40: Virtual Danger
Sonic Underground
HD
n/a
1 Season
Sonic, Sonia, and Manic are the offspring of Queen Aleena Hedgehog, the true sovereign of Mobius. As they navigate their childhood, they are relentlessly hunted by Doctor Robotnik and his inept henchmen, Sleet and Dingo. Separated at birth, the triplets have been hidden away to fulfill an ancient prophecy from the Oracle of Delphius, which foretells their reunion with their mother, the defeat of Robotnik, and their eventual return to power as rightful leaders of Mobius. Adventure and danger await as they embark on their quest to reclaim their heritage.
