After being kidnapped by his old flame Katarina at the end of last season, Raymond Reddington finds himself alone in a dangerous area, not knowing who he can trust. Facing old enemies and new friends, the Red Devil must act first to prevent the blacklisted criminal from exposing the truth he is sworn to protect. Elizabeth "Lizzie" Keen finally reunites with her daughter Agnes, but will face the danger of her late mother Katarina appearing, which will change her relationship with Reddington forever.