The FBI works with immigration control enforcement (ICE) when one of their undercover Chinese agents goes missing from a sweatshop in Chinatown, just as a gang war erupts between the leader of a human trafficking/sweatshop ring, Jimmy Lim, and the leader of what is assumed to be a prostitution ring, Henry Yoon. David and Colby get caught in the middle of this feud when they witness Jimmy shoot Henry dead and are forced to fire on Jimmy, killing him and eliminating one of the few people that can help them understand exactly what sparked the gang war. With Charlie, Larry and Amita's help, the team discovers that Henry and his brother Walter were not only running a prostitution ring, but also a ghost bride service for the families of Chinese men who died before getting married. Henry and Walter would provide young women to be buried alive with the deceased, and had been stealing undocumented girls away from Jimmy's operation, prompting Jimmy to confront Henry. The psychic Simon Kraft (episode 217) returns in this episode and provides assistance in locating the missing ICE agent, but is ultimately run down and killed by a fleeing suspect.
