The police are closing in on Royce. The Knezevics double-cross Royce, who barely escapes after killing Zeljko and his associates. When interviewed by the police, Ryan reveals Royce has been in contact, while Catherine's stirred up grief for Becky leads her on a collision course with Tommy. Meanwhile, Hepworth is taken in for questioning. On her final day in duty, Catherine connects some leads that allows her colleagues to solve Joanna's murder.