The Turtles learn first hand what it means to have a "Bad Shell Day" as calamity after calamity befalls them. This time the Turtles may not be able to save everybody...

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.