Special agent Lian Xing has been infected with the Syphon Filter virus and Gabe Logan must find the antidote. However, Gabe is a marked man, having been blamed for the release of the virus in the first place. Help him travel across the world and save Lian's life. Luckily, Logan is a sharpshooter and can take out any enemy with a shot to the head. If killing the computer drones becomes unsatisfying, you can challenge your friends to a Deathmatch. It's up to you to save Lian in SYPHON FILTER 2.