Summary
The Teenage Mutant Ninja Turtles originated from four ordinary turtles, a special mutagen, and a rat that taught them martial art. When Hamato Yoshi was banished from his home in Japan, he left for America and lived in the sewers. He befriended the rats and four turtles. Oroku Saki, an enemy of Yoshi poured mutagen down into the sewer to kill him, but instead gave the four turtles human like forms and gave Yoshi the form of a rat. The Turtles were taught martial arts and helped the innocent whenever possible with the help of April O' Neil, a reporter for Channel 6. Their main adversary is Oroku Saki, now known as the Shredder, who along with Krang, a brain from Dimension X, want to take over earth with armies of robots, mutants and soldiers from another dimension.