Once called "Father Frank" for his efforts to rescue lives, Frank Pierce sees the ghosts of those he failed to save around every turn. He has tried everything he can to get fired, calling in sick, delaying taking calls where he might have to face one more victim he couldn't help, yet cannot quit the job on his own.

Two hundred years after Lt. Ripley died, a group of scientists clone her, hoping to breed the ultimate weapon. But the new Ripley is full of surprises … as are the new aliens. Ripley must team with a band of smugglers to keep the creatures from reaching Earth.