The Tan Army has secretly invaded and captured the main Green Outpost station and set up new defenses located near the end of your driveway, blocking anyone and anything from entering.

Colonel Grimm, of the Green Army, has ordered the ultimate defeat of the Tan Army and chosen a two-man Special Forces team for the mission. This Special Forces team will consist of the Blue Spy and you, Sgt. Hawk, battling though several different backyard environments with the ultimate goal of destroying the Tan Army.