The citizens of GASI headquarters start disappearing from a bright blue flash and the monkeys plus YAY-OK must save them. They have also turned into princess monsters created by an evil princess named Princess Monstare. Eventually YAY-OK tries to fight her, but she turns into a robot with him and the monkeys must save him and stop her.

Cast

Seán Cullen

Gus, Princess Echo, Cheese Narrator

Mark Edwards

Wally, Inky, Prince Charming

David Berni

Yay-ok, The Babysitter

Jamie Watson

Dr.Chimpsky

Julie Lemieux

Princess Monstare

Bryn McAuley

Sleeping Beauty

Lisa Norton

Snow White

Shoshana Sperling

Cinderella