Cyrax is unit LK-4D4, the second of three prototype cyber-ninjas built by the Lin Kuei. Like his counterparts his last programed mission is to find and terminate the rogue ninja Sub-Zero. Without a soul, Cyrax goes undetected by Shao Kahn. He remains a possible threat against Kahn's occupation of Earth.
END SCREEN: Cyrax is captured by Sub-Zero and reprogrammed with new orders; destroy Shao Kahn. With Kahn unable to detect the assassin's soulless presence, Cyrax delivers a successful sneak attack. But, after destroying Kahn and saving the Earth; Cyrax awaits new orders from his Lin Kuei headquarters. The orders never come and Cyrax malfunctions. His unit ends up stranded in the middle of a vast desert, blindly heading towards base.