Otis is a cow who likes to play. His father Ben is the leader of the barnyard when the farmer is away. Otis interrupts a barnyard meeting with his wild behavior, His father tells Otis he will never be happy if he just goofs off, and that he should grow up. Otis ignores his advice and leaves to have fun with his friends: Pip the mouse, Pig the pig, Freddy the ferret, and Peck the chicken. That same day, Otis meets a new cow, Daisy, who is pregnant. She is with Bessy, another female cow.