Teenage Mutant Ninja Turtles - Season 4 - Eps 11: Dragons Rising
The Purple Dragons have evolved from a basic street gang to a smuggling syndicate that works throughout New York. Leonardo goes with Casey to put an end to Hun's plans. However, Casey and the recently angry Leo will have to control their own fury if they want to bring justice-- and not just veangeance-- out of this.
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)