Return to the Underground (S02E13)
S02E13
The Turtles make their way back to the subterranean city, only to discover it is deserted. The powerful crystal moon that once energized the city is gone, and its human inhabitants have transformed into monstrous creatures. With time running out, can Donatello's volatile serum reverse the effects and bring the humans back to their former selves?
Show
The Business of Drugs
Episode
S02E13
Air Date
Mar 06, 2004
Season 2 Episodes
S02E01
Turtles in Space (1): The Fugitoid
S02E02
Turtles in Space (2): The Trouble with Triceratons
S02E03
Turtles in Space (3): The Big House
S02E04
Turtles in Space (4): The Arena
S02E05
Turtles in Space (5): Triceraton Wars
S02E06
Secret Origins (1)
S02E07
Secret Origins (2)
S02E08
Secret Origins (3)
S02E09
The Ultimate Ninja
S02E10
Reflections
S02E11
Modern Love - The Return of Nano
S02E12
What a Croc
S02E13
Return to the Underground
S02E14
City at War (1)
S02E15
City at War (2)
S02E16
City at War (3)
S02E17
Junklantis
S02E18
The Golden Puck
S02E19
Rogue in the House (1)
S02E20
Rogue in the House (2)
S02E21
April's Artifact
S02E22
Return of the Justice Force
S02E23
Big Brawl (1)
S02E24
Big Brawl (2)
S02E25
Big Brawl (3)
S02E26
Big Brawl (4)