The turtles find out where the Ooze, the substance which made them mutate, came from. Unfortunately Shredder learns about it too, and uses it to enhance himself. So the turtles have to prove again who's the better ninja fighter.
忍者神龟们发现了变种物质的泄漏之处,但史莱德同时也发现这一秘密,于是他们之间又展开了新一轮的战斗,而忍者神龟们也在战斗中得到了提高!