When an illegal arms broker turned informant is assassinated, OA assumes his identity and goes undercover to stop the sale of dangerous weapons, with help from Maggie and their former FBI instructor, Rowan Quinn.

A woman with information about the death of Maggie’s husband is abducted, leading OA and the team to uncover a criminal operation larger than anyone imagined. Also, Dana puts her career in jeopardy when she stands by and allows Maggie to work on this case that has such a personal connection to her.