Professor Gerald Deemer has been working on a special nutrient to help ease a predicted food shortage that is expected to come with the increase in human population. His experiments have been moderately successful but there have been some failures as a result. One day while he is gone two of his colleagues inject themselves with the nutrient with disastrous results and die a few days later. One however goes mad and injects Deemer with the formula. During a struggle, a giant tarantula injected with the formula escapes its cage and grows even larger and starts to attack cattle as well as human beings.

Directed by: Jack Arnold The cast includes: John Agar (Dr. Matt Hastings), Mara Corday (Stephanie ''Steve'' Clayton) MPAA rating: , Running time: 80 minutes Presented in: BW Related titles: Black Scorpion, The (1957), Earth vs the Spider (1958), Arachnophobia (1990) Related categories: Atomic SciFi, Campy, Fab Fifties, Horror, Monsters on the Loose