My Big Fat Zombie Goldfish

Tom's big brother is an Evil Scientist who wants to experiment on Tom's new goldfish Frankie. Can Tom save his fish from being dunked in radioactive gunge? Er no. In an act of desperation Tom zaps Frankie with a battery bringing him back to life! But there's something weird about the new Frankie - he's now a zombie goldfish with hypnotic powers and he wants revenge...