Season
Season 7 Episode
- Season 2 Turtles in Space (1): The Fugitoid
- Season 2 Turtles in Space (2): The Trouble with Triceratons
- Season 2 Turtles in Space (3): The Big House
- Season 2 Turtles in Space (4): The Arena
- Season 2 Turtles in Space (5): Triceraton Wars
- Season 2 Secret Origins (1)
- Season 2 Secret Origins (2)
- Season 2 Secret Origins (3)
- Season 2 The Ultimate Ninja
- Season 2 Reflections
- Season 2 Modern Love - The Return of Nano
- Season 2 What a Croc
- Season 2 Return to the Underground
- Season 2 City at War (1)
- Season 2 City at War (2)
- Season 2 City at War (3)
- Season 2 Junklantis
- Season 2 The Golden Puck
- Season 2 Rogue in the House (1)
- Season 2 Rogue in the House (2)
- Season 2 April's Artifact
- Season 2 Return of the Justice Force
- Season 2 Big Brawl (1)
- Season 2 Big Brawl (2)
- Season 2 Big Brawl (3)
- Season 2 Big Brawl (4)
Teenage Mutant Ninja Turtles - Season 2 Episode 13 Return to the Underground
7.82 22 minutes The Turtles return to the underground city but they find the city is now abandoned, it's crystal moon power source missing, and it's human population reduced to monsters. Can an unstable serum created by Donatello restore the humans to normal?
