Sailing instructor Kaye Morgan is reunited with her old boyfriend, pro surfer Wes Masters; Stephanie has cancer surgery; Neely comes between Caroline and Logan.
C.J.'s mother arrives from Las Vegas with the mob hot on her trail in pursuit of a computer disk containing details about her gangster boyfriend's gambling profits.
Mitch has a busy day rescuing an injured swimmer and dealing with an editor who wants to feature him in her magazine; Stephanie and Tom's wedding gets moved up.
While out at sea testing new diving equipment, Sam, Neely and Caroline rescue the pilot of a downed plane who is transporting disease organisms belonging to a terrorist.