Back 17 years, and Erin was teamed with Chris (Sebastian Stan) in an undercover operation to get in with a gang of outcasts. They are led by a strange but charismatic guy named Silas (Toby Kebbell). People in the gang were under control of Silas, to the point of playing Russian roulette for his amusement. He would plan bank robberies and other things to prove the loyalty of his crew. After many months, Erin Bell and Chris became full ingrained into the gang. They become lovers and Erin is pregnant. But there is a fateful day with a robbery gone very badly. Erin’s child will never meet her true father.
Erin Bell has survived her life since that day, and has not dreamed of anything but getting revenge. One day, she hears of some recent clues about the return of Silas to the scene in LA. There are some ex-gang members that she finds, and she finds DiFranco (Bradley Whitford). DiFranco is a successful lawyer who has side jobs from criminal clients. One of his contacts is Silas, and he has been laundering money from the old bank robberies. This leads Erin to Petra (Tatiana Maslany), one of the old members. She is getting new members to work for Silas to commit new robberies. Erin finds one in progress and becomes an on-the-spot security force. She first captures and gets more information from Petra, so that she can confront Silas for a final time.