 Due to the tank winning the competition, Army Headquarters orders that Captain Dike Conger take over the command of the 31st Cavalry from the kindly old Colonel Armstrong.Though Julie and the officers and troopers of the Regiment despise Dike for doing this, the gentlemanly Colonel Armstrong suggests a scheme to win his Regiment over; the Colonel and Dike swap mounts.However, in a wild ride inside the tank both the Colonel and "Three Star" are killed when the tank goes out of control.