Teenage Mutant Ninja Turtles - Season 1 - Eps 15: Notes from the Underground (3)
After befriending the once-human creatures in an abandoned underground Foot Genetics Lab, the Turtles join them on a journey deeper into the earth, where they come upon the ruins of a once-great subterranean city.
About Teenage Mutant Ninja Turtles

Title: Teenage Mutant Ninja Turtles
First Air Date: 2003-02-08
Last Air Date: 2009-02-28
Status: Ended
Rating: 7.77/10 (from 191 votes)
Language: EN
Seasons: 8
Total Episodes: 154
Network: FOX The CW
Genres: Action & Adventure, Animation, Kids
Production Companies: Dongwoo A&E Co., Ltd., 4Kids Entertainment, Mirage Studios
Synopsis
When four pet turtles were bathed in alien ooze, they began to mutate and became the Teenage Mutant Ninja Turtles. Raised in New York City sewers by their foster father and wise sensei, Master Splinter, Leonardo, Michelangelo, Donatello, and Raphael wage war against crime. Led by Master Splinter, the four turtles learn the ancient martial art of Ninjitsu, mastering skills of stealth, weapons, and fighting. They stop evildoers in all forms, whether barbaric gangs, lowlife crooks, deranged cyborgs, or even the crime syndicate The Foot, led by their archrival, The Shredder.
Cast

Michael Sinterniklaas
Leonardo (voice)

Wayne Grayson
Michelangelo (voice)

Sam Riegel
Donatello (voice)

Gregory Abbey
Raphael (voice)

Darren Dunstan
Master Splinter (voice)

Veronica Taylor
April O'Neil (voice)

Marc Thompson
Casey Jones (voice)

Scott Rayow
Shredder (voice)