Mr. Peabody is an inventor, scientist and genius who just happens to be a dog. With his son Sherman, he will embark on the most extraordinary adventure imaginable as they race against time to repair history and save the future.

Set in a seaside town on the Italian Riviera, a young boy experiences an unforgettable summer. Luca shares his amazing adventures with his newfound friend Alberto, but their fun is threatened by a deeply held secret: they're sea monsters from another world just below the water's surface.