Pedro's penguin exhibit is moving to another museum, but Ridley and the others don't want their pal to go — and neither does Pedro.

Ridley and the Eyes get zapped back in time with Mr. Peabody and learn the truth about why he hates Christmas — and the museum. Can they change his mind?

Mama works with the Eyes Team to stop a selfish raider and her gang who are plotting to steal an important artifact from the museum.