Adrift on a flood, two misfit castaways struggle to reunite an unorthodox family, out-run a volcano, and negotiate a peace deal on a creaking Ark.
Orphaned at birth and raised by storks, the teenage sparrow Richard believes he is one of them. But when the time comes to migrate to Africa, his stork family is forced to reveal his true identity and leave him behind in the forest, since he is not a migratory bird and would not survive the journey. Determined to prove he is a stork after all, Richard ventures south on his own. But only with the help of Olga, an eccentric owl with an imaginary friend and Kiki, a narcissistic, disco-singing parakeet, does he stand a chance to reach his goal and learn to accept who he really is.
It's the end of the world. A flood is coming. Luckily for Dave and his son Finny, a couple of clumsy Nestrians, 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. Now Finny and Leah struggle to survive the flood and hungry predators and attempt to reach the top of a mountain, while Dave and Hazel must put aside their differences, turn the Ark around and save their kids.