Bloodlines Caprice of the Scourge program has captured the U.S. Agent. Along with the Scourge agent Bloodstain, she drugs and interrogates him in a steam chamber in attempt to learn his secret identity. Once they get enough information to peg him as John Walker, Bloodstain brings him out of his trance while pretending to be his long-lost brother Mike, a soldier whose death was faked so he could enter the CIA's Scourge program. John hesitates to believe the story, but it's plausible. With the seed planted, Bloodstain offers Walker his own place within the Scourge program.