Ru the squirrel is going on summer vacation with his family! The vacation house has a pool, and he can't wait to swim with his duck-shaped floatie from last year with a long neck, eyes, and a beak. But his older sister Res reminds him that he doesn't know how to swim. And there's also a vicious cat in the area, and everyone knows cats and squirrels don't get along. By the way, do cats know how to swim?