Sonic Underground

1. Beginnings (Origins: Part 1)

The saga of the Underground unfolds, tracing the decline of Mobotropolis and ...

2. Getting to Know You (Origins: Part 2)

The Hedgehogs embark on a journey of self-discovery, uncovering the crucial a...

3. Harmony or Something (Origins: Part 3)

Sonic, Manic, and Sonia rush to stop Robotnik's sinister plan, as he puts the...

4. To Catch a Queen

Argus, captain of the Queen's guard, falls into enemy hands when Sleet and Di...

5. Mobodoon

Next episode, Sonic, Sonia, and Manic head back to their hometown of Mobodoon...

6. The Price of Freedom

Sonia embarks on a journey to East Mobius, arriving at the esteemed LaTour es...

7. Underground Masquerade

Sneaky Sleet and Dingo concoct a plan to swindle the Duke of Velcronia out of...

8. Tangled Webs

Sonic's old friend Cyrus is forced to surrender to Robotnik's demands as he h...

9. The Deepest Fear

Sonic, Manic, and Sonia embark on a perilous journey to Port Mobius, where th...

10. Who Do You Think You Are?

The long-lost royal journals of Queen Aleena are believed to be hidden beneat...

11. The Last Resort

Sonic, Manic, and Sonia find themselves in the middle of the arid wastelands ...

12. Come Out Wherever You Are

Sonia receives a debutante ball invitation, but her brothers, Manic and Sonic...

13. Winner Fakes All

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

The Hedgehogs receive a mysterious message that appears to be from a long-los...

15. Artifact

The next episode follows the Hedgehogs as they pull off a daring heist, snatc...

17. Sonic Tonic

A revolutionary speed-boosting serum called Sonic Tonic is concocted by Dr. R...

18. Friend or Foe

The Sonic gang unites on the enigmatic Floating Island, driven by their unwav...

19. Head Games

Sonic is interrupted from his chili dog snack by a mysterious message from hi...

20. When in Rome

Sonic's determination to fight for freedom begins to waver as he questions th...

21. The Jewel in the Crown

The next episode's plot thickens as Robotnik sets his sights on Queen Aleena'...

22. Three Hedgehogs and a Baby

The trio discovers an abandoned infant in an alley and embark on a mission to...

23. Dunes Day

The next episode follows Sonic and his siblings as they venture to the periph...

24. Mummy Dearest

The brothers Sonic, Manic, and Sonia embark on a daring mission to infiltrate...

25. The Hedgehog in the Iron Mask

The Hedgehogs embark on a new mission to locate their mother, leading them to...

26. Six Is a Crowd

The Hedgehogs embark on a perilous quest to uncover the secrets of their dest...

27. Flying Fortress: Chaos Emerald Crisis Part 1

Sonic, Manic, and Sonia's relaxing getaway takes an unexpected turn as they m...

28. No Hedgehog Is an Island: Chaos Emerald Crisis Part 2

In the next thrilling episode, Sleet and Dingo pull off a daring heist, fleei...

29. New Echidna in Town: Chaos Emerald Crisis Part 3

Knuckles agrees to betray Sonic and his family to Robotnik in exchange for th...

30. Wedding Bell Blues

Robotnik's plan to conquer Mobius takes an unexpected turn as he announces hi...

31. Country Crisis

The Hedgehogs embark on a mission to a valley on Mobius, where they aim to br...

32. Haircraft in Space

In the next episode, Dr. Robotnik employs the cunning Doo-bot, a local hairdr...

33. Healer

A charismatic inventor arrives in Robotropolis, boasting a revolutionary devi...

34. Sonia's Choice

The next episode features a sinister plot by Dr. Robotnik, who has mastermind...

35. The Big Melt

The Sonic Hedgehog family's peaceful getaway is suddenly disrupted by the omi...

36. Sleepers

The Hedgehogs embark on a perilous mission to a distant sector of Robotropoli...

37. Bartleby the Prisoner

In the next thrilling episode, Robotnik's sinister plan unfolds as he capture...

38. Art of Destruction

Robotnik unleashes a new tool of terror, Art, to ruthlessly enforce the eradi...

39. The Pendant

Robotnik seeks to expand his dominion by establishing a new territory, the Em...

40. Virtual Danger

In the next thrilling episode, Sonic and Manic engage in a high-tech virtual ...