While awaiting punishment in his headmaster's office for his latest piece of mischief, prankster Seth picks up an Egyptian amulet from the desk and is whisked back in time to Ancient Egypt. In a village by the Nile, Seth finds a place for himself, working for the local tradesmen and playing with the local children. One of his new friends, Mery, has a pet hyena that Seth grows to love, so when he hears that the hyena is going to be roasted as part of a feast for the visiting pharaoh, Seth decides to save him. But what consequences will Seth have to face for stealing the pharaoh's lunch?