Two Swedish/Norwegian half sisters go on a winter diving trip in Northern Norway, when they get trapped after a rockslide.

Oskar's deepest wish is to be able to ride on the prairie with his mother over summer break. But alas, everything turns out differently than expected and the 10-year-old is forced to spend his vacation on his grumpy grandfather's farm. Oskar's only friend is the outsider Levi, who talks with his pony. Together they hatch a plan to get away from their grim reality: they’ll row across the Atlantic to America in grandfather's boat!