Elias is an only child seeking adventure in his ordinary life. He and his telepathic rabbit, Snowball, encounter a strange man wearing a gas mask. Snowball and Elias determine the alien intruder is from another galaxy and wants to take over the house. Elias enlists the help of his best friend to blast the alien back to outer space. Unfortunately, Elias' dad gains many bumps and bruises along the way. Poor guy.