Armed with prototype weapons and a powered-up Dropship, Lt. Henry begins the final assault against the Alien menace. While he is planning his strategy, his crew is succumbing to strange withdrawal symptoms, and the ones still on their feet are plotting mutiny!
Henry's only hope is to reprogram Liston, the high-powered synthetic, to follow his every command -- even if it means killing a human being. The air is thick with tension, and a traitor will step out of the darkness with a gun in his hand and murder in his heart. A guaranteed shocker!