Season 1 Episode
- Season 1 Episode 1
- Season 1 Episode 2
- Season 1 Episode 3
- Season 1 Episode 4
- Season 1 Episode 5
- Season 1 Episode 6
- Season 1 Episode 7
- Season 1 Episode 8
- Season 1 Episode 9
- Season 1 Episode 10
- Season 1 Episode 11
- Season 1 Episode 12
- Season 1 Episode 13
- Season 1 Episode 14
- Season 1 Episode 15
- Season 1 Episode 16
- Season 1 Episode 17
- Season 1 Episode 18
- Season 1 Episode 19
- Season 1 Episode 20
- Season 1 Episode 21
- Season 1 Episode 22
- Season 1 Episode 23
- Season 1 Episode 24
- Season 1 Episode 25
- Season 1 Episode 26
- Season 1 Episode 27
- Season 1 Episode 28
- Season 1 Episode 29
- Season 1 Episode 30
- Season 1 Episode 31
- Season 1 Episode 32
- Season 1 Episode 33
- Season 1 Episode 34
- Season 1 Episode 35
- Season 1 Episode 36
- Season 1 Episode 37
- Season 1 Episode 38
- Season 1 Episode 39
- Season 1 Episode 40
Sonic Underground - Season 1 Episode 13 Artifact
6.80 25 minutes 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 them that the artifact is actually a bomb from the Mobian war. The Hedgehogs must act fast to retrieve the bomb and protect the treasure that is the key to Mobius past.
