Rick, Jane and Dr. Evans have escaped from the Cheyenne Mountain Complex just before it is sealed. With Dr. Evans having found a clue that could lead to the termination of Damocles they must decide whether to risk it all in an attempt to stop what is happening. Meanwhile, Dianne and Jason have rescued Tina from the clutches of the gang, but Jason has paid a terrible price. His survival will hinge on the group working together - or else.