Jimmy and his pals wish that there were no more parents to tell them what to do. So when aliens kidnap all the grown-ups in Retroville, their wish suddenly comes true. With no one to stop them the kids go on a fun-filled free-for-all day. But things turn sour when there's no one to soothe their tummy aches or tuck them in at night. Jimmy and his friends want their parents back - and fast! Blast off with Jimmy and pals as they head for Planet Yolkus to rescue the grown-ups before it's too late.