Hushpuppy, an intrepid six-year-old girl, lives with her father, Wink in 'the Bathtub', a southern Delta community at the edge of the world. Wink’s tough love prepares her for the unraveling of the universe—for a time when he’s no longer there to protect her. When Wink contracts a mysterious illness, nature flies out of whack—temperatures rise, and the ice caps melt, unleashing an army of prehistoric creatures called aurochs. With the waters rising, the aurochs coming, and Wink’s health fading, Hushpuppy goes in search of her lost mother.

Emil's reputation for being a troublemaker makes the Svensson family's neighbours take up a collection for sending the boy off to America. But even if he among other unfortunate mishaps causes his father to get stuck in the outhouse window and get bitten by crawfish, all is forgotten when he skillfully wins the family a free horse. And when Alfred the farmhand gets seriously ill, Emil puts his own life on the line, venturing into a snow storm to get his best friend to a doctor before it is too late.