A time traveling scientist goes back to prehistoric times and feeds dinosaurs a magic cereal that increases their intelligence - next they land in modern New York City for a series of comic adventures.
A girl gifted with a keen intellect and psychic powers uses both to get even with her callous family and free her kindly schoolteacher from the tyrannical grip of a sadistic headmistress.
Tycoon billionaire Ronald Grump wants to demolish Sesame Street to build his Grump Tower, and it's up to the Sesame Street citizens to save their favorite buildings from being destroyed.