一位邪恶的科学家把一位被谋杀的中学生迈克的大脑移植到一只能动的恐龙雷克斯中。 这支雷克斯暴龙的身材大小在片中能随时改变。后来雷克斯逃跑了，向那些在学校中曾使他 痛苦的人们发泄他的报复，并且和他心爱的姑娘泰米又团圆了。他们二人一起躲避开那位的邪恶的科学家和警察，找到了一支合适的试管 容纳迈克的大脑。这时迈克的大脑还仍然活着。An evil scientist implants the brain of Michael, a murdered high school student, in an animatronic Tyrannosaurus. He escapes, wreaks vengeance on his high school tormentors and is reunited with his sweetheart Tammy. Together, the couple try to elude the mad scientist and the police and find a more appropriate vessel for Michael's brain.
推荐专题