The Ninja Turtles aren’t technically an army, but more of a commando cell. Still, the Foot Clan more than makes up the difference. The Foot Clan is a global, centuries-old order of ninjas. In the 1960s, two members had a falling out. Oroku Saki framed Hamato Yoshi of the attempted murder of their sensei. The latter was banished from Japan and ended up living in the sewers of New York City. Oroku Saki, meanwhile, took charge of the Foot Clan and led them into the larceny business. (What else are you going to do with an army of ninjas?) Here's what happens next: 1. Oroku Saki strikes a deal with an alien being from Dimension X who is in possession of highly advanced technology. 2. Oroku Saki, who operates under the name Shredder, attempts to murder his old foe not with a throwing star, sword, bow and arrow, or blow dart, but with some sort of toxic goo. 3. Hamato Yoshi is mutated into a giant rat. 4. His four pet turtles are mutated into giant humanoids. Also, members of the Foot Clan are replaced with robots. Why are they fighting? Pretty easy. On one side you have Shredder, who, because of his robots and alien technology, has upped his sights from criminal empire to planetary conquest. On the other side, you have an A-Team type situation: Framed for a crime he didn’t commit, Splinter (née Hamato Yoshi) leads a crack commando unit to fight back. “If you have a problem, if no one else can help, and if you can find them,” you can recruit the aid of teenage mutant ninja turtles.