Movie version of the original TV series follows the show's format of multiple stories blended together. The lead story involves the ship's bookkeeper who becomes the driver by accident for a trio of jewel thieves. A suspended police lieutenant trails the group onto the boat in disguise. The ship's captain, reclusive since his wife's death, is pushed by his daughter to return to the hotel in Bermuda where the couple originally honeymooned. The new cruise director sets her eyes on a passenger who is a TV star, but another ship employee is interested in her. Doc has to care for the pregnant wife of the ship's chief executive.

Guest stars include Georgia Engel as a stowaway, Gary Frank and Melanie Mayron as a pair of tremulous honeymooners, Stella Stevens and Pat Harrington as an eternally bickering married couple, and Audra Lindley and Phil Silvers as, respectively, an outspoken middle-aged lady and a woebegone widower.

为了对付果蝇，州长不顾后果使用了某种可能导致生物异常的杀虫剂。13年后，姗伦一家买下了山景镇的一座旅馆并移居那里。在一个月黑风高的晚上，维罗妮卡和史蒂夫在湖中游泳时受到大鱼的攻击，随后当地医生在大鱼内发现了奇怪的寄生虫。 此后，城镇上接二连三发生被寄生虫袭击的死亡事件，包括维罗妮卡和姗伦的父母。为了不让更多的人受到伤害，史蒂夫、姗伦与请来的灭虫专家乔治将军一起深入虫穴。却遭到警长百般阻挠，原来他为了镇上的金矿，纵容虫子肆意屠杀，恶有恶报，罪恶的警长自食其果，被母虫残忍地杀死，乔治将军凭着大无畏的自我牺牲精神，终于消灭了庞大的母虫，成功保卫了城镇。