Professor Plum and his designs for the dreaded, death-dealing doomsday device, DEAD END, are in the clutches of the diabolical LAWBREAKERS - a sinister society dedicated to the destruction of mankind. It's only a matter of time before the DEAD END device is assembled and the final countdown to global Armageddon begins! As Sgt. Billy "Big Bang" Blitz - the youngest and gutsiest commando of the Special Assault Brigade for Real Emergencies (S.A.B.R.E.) - your mission is to foil the LAWBREAKERS' insidious plot. To accomplish your mission, you must find the shortest route to the summit of Demonhead Mountain, where the poor professor is being held prisoner. Rescue the professor and you save the world from total destruction. But if you should fail...