MaCross wants to own the Texacota valley, because it has oil fields, and decides the best way to go about this is to re-enact a Godzilla movie, using the giant sleeping Bronto Bear, and substituting Texacota for Tokyo. The bear, decidedly unhappy about having its winter hibernation disturbed is on a direct course to the city, and it's up to the rangers to give the big lug a sedative and get it back to the Arctic where it belongs while the law enforcement in Texacota handle crowd control.