Recap: Teenage Mutant Ninja Turtles 2003 S 1 E 1 Things Change

When mysterious robots attack the Turtles' lair in the sewer, they lose contact with their master, Splinter, and decide to go topside to meet up with him. However, the quartet run afoul of a group of street thugs known as the Purple Dragons and a swarm of ninjas.

First appearance of Leonardo, Michelangelo, Donatello, Raphael, Splinter, The Shredder/Oroku Saki, the Purple Dragons, and the Foot Clan

This episode provides examples of: