After returning home from a traumatic tour of duty in Iraq， John findshimself struggling with PTSD。 What little peace he had managed to buildaround him is shattered…

三个疯狂的外星人被一个更疯狂的外星人逼迫，必须从外空精神病院逃脱，去征服整个宇宙。他们要为自己找个歇脚地，于是来到了地球。在这里他们开始了征服宇宙的第一步。