One morning when C.J. arrives at her tower, she finds a bouquet of flowers and a poem. She takes for granted that the flowers are from Cody, but it turns out she has a secret admirer. Later when a boy gets into trouble under the pier, a man in a mask rescues him. When he scares the children, he runs away again. One of the boys tells his brother Billy about it. Billy and his friend Brett become obsessed with trying to get this so-called monster on videotape. Therefore they rig a camera under the pier and hope to catch a glimpse of him and then earn money on him.
This long-running series follows the adventures of a team of lifeguards on the crowded beaches of Los Angeles County. Veteran lifeguard Mitch Buchannon watches over the younger lifeguards that come and go with each passing season as they keep the beaches safe for vacationers. Frequently he must take action to save them from the raging seas and from the raging tempers that sometimes flare up between the young guards in this stressful job.