A flood is coming. Luckily for Dave and his son Finny, an Ark has been built to save all animals. But as it turns out, Nestrians aren';t allowed. Sneaking on board with the involuntary help of Hazel and her daughter Leah, two Grymps, they think they';re safe. Until the curious kids fall off the Ark. With the help of friends big and small, Dave must turn the Ark around to save his son in this heartwarming adventure of biblical proportions..