Scarlett and Sam are back again in a twist on the biblical adventure tale of Jonah and the whale. When the twins take Grandma Mina's special carpet to be cleaned and repaired, they encounter a strange person who steps on the rug and disappears! Scarlett and Sam follow him back through time to ancient Israel, where they find themselves on a ship. Why have they been sent back in time to this ship on a stormy sea? Soon the answer comes. The man is Jonah and they're in the story of Jonah and the whale! Sam and Scarlett know that they must do what the ship's captain cannot―get Jonah overboard―even if that means that they must go overboard, too!