When Psychris returned on The Dream Dimension, he wants to get revenge on his mother Peacina, for banishing him out of the kingdom. And he steals The Crystal Super Chip for his secret weapon The Deathray. Back in New York, Sherman leaves school for the Summer Holidays, until Mr. Peabody was captured by Psychris. And the only one who can save the world, rescue Mr. Peabody, and return The Crystal Super Chip back to the spiral, is Sherman. He must stop Psychris from trying to use the weapon with that Crystal Super Chip to destroy humanity.
