Ep. 2: The Coming of the Guardian Beasts: The Metal Turtles Appear!

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The Turtles, along with April and Splinter, travel to Japan in order to help Kinzou Hattori get rid of a ghost haunting the Hattori House. At the same time, Shredder, Bebop and Rocksteady teleport themselves to Japan in order to steal the Tablet of the Seven Elements, so they can gain the powers of the Guardian Beasts. (Source: Wikipedia)