Chase and August investigate a string of gang-related robberies in Little Saigon, the Vietnamese area of downtown Los Angeles. One of the gang members turns out to be the son of August's Vietnam buddy, who died saving August's life. August is further shocked to discover that the boy's mother is the same woman he tried to help get out of Vietnam when he was coming back. They had gotten separated just seconds before their helicopter arrived, and August thought for sure she had died in the years that followed. She wants him to pull her son out of the dangers of gang life, but he knows too much for the gang to let him go.