A young Nurse is assigned to look after a patient in a remote location in the English countryside. As the night continues she finds herself terrorized by an unseen force that is connected with her patient.
When the trainee pilot and her mortally wounded gunner are shot down, they crash land on a nearby planet. An enemy craft offers the chance of spare parts to fix her ship, but then she spots another survivor - an enemy alien soldier with no intention of letting her escape.