Its a story about a hitman given the code 002. He is one of the best the organisation has. He can do anykind of job. From simply sniping from a distant place to inflitrating a highly guarded area. All you need to give him is the description of the hit and agent 002 will make sure he is dead. Hitman gets all his calls from th Agent 001 who is unknown to any of the hitman. The only way they can distinguish the call of 001 is from the code that is seen on the special phones given to all the hitmen.