The Outer Limits: The Brain of Colonel Barham

Colonel Barham is a bitter disabled man with a terminal illness and that moves on a wheelchair which is selected to go on Mars but only his brain under the envelop of a robot will be aboard the ship. More frustrated than ever, the bodyless brain turns out to be megalomaniac and rebels against the Officials to rule. Armed with a rifle, the General in charge of the project shoots down and makes the brain's room explode.