A young girl must enlist her juvenile father to help save the town from her biting brother. Whilst she's trying to save the town, she must go through school life whilst hiding her brother's true form

Following the events at home, the Abbott family now face the terrors of the outside world. Forced to venture into the unknown, they realize the creatures that hunt by sound are not the only threats lurking beyond the sand path.

Seth Brundle (Jeff Goldblum), a brilliant but eccentric scientist attempts to woo investigative journalist Veronica Quaife (Geena Davis) by offering her a scoop on his latest research in the field of matter transportation, which against all the expectations of the scientific establishment have proved successful. Up to a point. Brundle thinks he has ironed out the last problem when he successfully transports a living creature, but when he attempts to teleport himself a fly enters one of the transmission booths, and Brundle finds he is a changed man. This Science-Gone-Mad film is the source of the quotable quote "Be afraid. Be very afraid."

Following the events at home, the Abbott family now face the terrors of the outside world. Forced to venture into the unknown, they realize the creatures that hunt by sound are not the only threats lurking beyond the sand path.