Double bill of two gentle tales about friendly aliens, hope and rejuvenation. In the first 'Cocoon', three elderly friends in a Florida retirement home (Don Ameche, Wilford Brimley and Hume Cronyn) discover a swimming pool that renews their energy and gives them a new lease of life. The pool is full of cocoons belonging to a group of friendly aliens in human disguise. In 'Cocoon 2', the group, who were taken to a better life by the aliens in the original film, return to Earth for a visit. They help the aliens on a rescue mission to save the remaining cocoons left on Earth, which have become endangered by an imminent earthquake.