Despite their conceptual differences, World War Alpha actually ties into both Sure Shot 3D and Wrecked to complete a trilogy of games. The treacherous ending of Sure Shot (whereby Major Merc Paramount abandons his partner on the island) sent our 2 heroes down separate paths. While Wrecked concerned itself with the island that was left behind, World War Alpha proceeds to tell the story of what happened to the army that flew away. The details are fleshed out in the game via a series of episodic cut-scenes, but the basic gist is that their maniacal appetite for world domination takes them deep into the past - where they expect to brutalize their primitive ancestors with their superior knowledge and technology! Fortunately for us, they get much more than they bargained for from our resourceful forefathers...