影片讲述了卢卡斯饰演的高中生打算组装一辆卡车准备出出风头,但是报废车辆的零件哪有那么好用。这是,小镇上出现了一个类似章鱼的大怪兽,不知道从哪里来,但是这头怪兽竟然能躲进卢卡斯的卡车里,并且和卡车融为一体,就这样,卢卡斯拥有了惊世骇俗的怪兽卡车,去到哪里都是如履平地、所向披靡。In a small town, an oil company is drilling for oil. The geologist, Dowd, informs his boss, Tenneson that they detected what could be an ecosystem which could affect their drilling rights. But Tenneson tells them to go on and something happens. Something came out and Tenneson wants to keep it quiet by keeping what came out on ice. In the town, something's been taking the fuel tanks off vehicles, leaving a big hole. Tripp, who lives in the town is frustrated at his life, specifically not having a vehicle of his own. He works at a scrap yard and he's been working on restoring an old truck. One day he thinks he hears something and traps it in the storage pit. He calls the Sheriff who's his step-father, whom he doesn't like. And when he gets there, it's gone. Later he sets a trap for it and sees it's a slug like creature who feeds on oil. He would bond with it. Later a man from the oil company shows up at the yard and asks him about the thing he reported earlier. Tripp feigns it was mistaken but the guy doesn't believe him. The creature enters the chassis of the truck he was working on and makes it move. He then gets in the truck and it goes off on it's own and he tries to figure out what to do.