Five ordinary individuals are abducted by extraterrestrial visitors and entrusted with devastating capsules capable of annihilating humanity while preserving the planet itself. The aliens present a calculated ultimatum: use the weapons, and Earth becomes theirs to colonize. Director William Asher orchestrates this science fiction premise through the performances of Gene Barry, Valerie French, and George Voskovec, based on the screenplay by John Mantley and Robert M. Fresco. A tense exploration of power, choice, and humanity's place in the cosmos.