The player assumes the role of Dr. Greg Bradley who comes to remote Lizard Breath, California on June 1, 1951. As a geologist, he wants to study a recent site of a meteor crash somewhere in the desert south-west of the small town. Early in the game, he learns that the radiation of the meteor has enlarged a local ant population to an enormous size. However, few take his observations seriously. Worried, that the ants will soon mate and spread, he must work against a ticking clock and devise a plan to stop the ants from terrorizing the world. In order to succeed, the player must visit many locations ranging from mines, farms, a pub, an airfield, a local radio station and many more to find evidence of the ants, then convince townsfolk and authorities of impending doom. At the same time the player must contain the ant infestation.