After her family moves to the city, Chloe finds her new school to be a scary place where she doesn't fit in. When her father tells her the Bible story of Jonah, Chloe uses her imagination to bring the adventure to life, complete with a nervous prophet, rival gangs of Ninevites who happen to be amazing dancers, a hearty band of Spanish mariners, a troubled King and Queen, a pair of lovable fish named Humphrey and Chum, and a trio of singing crustaceans called the "Crabelles."