Them!' THEM! is a 1954 science fiction film directed by Gordon Douglas. It tells the story of a group of scientists and police officers who investigate a series of mysterious giant ant attacks in the desert near Los Angeles. The ants are mutated by radiation from the first atomic bomb test in New Mexico. The film stars James Whitmore, Edmund Gwenn, Joan Weldon, and James Arness. It was nominated for an Academy Award for Best Visual Effects. THEM! is considered to be one of the earliest examples of the giant monster genre, and has been praised for its special effects and suspenseful atmosphere.