Corporate spy Tamar Prather steals a Xenomorph egg from Weyland-Yutani, taking it to a lab facility run by Venture, a Weyland-Yutani competitor. Former Colonial Marine Zula Hendricks-now allied with the underground resistance-infiltrates Venture's security team. When a human test subject is impregnated, the result is a Xenomorph that, unless it's stopped, will kill every human being on the planet.