Internal Affairs sets their sights on Sergeant Blakemore believing that she sold confidential information that lead to the murder of police witness Miranda Latham. The disclosure of Helen’s use of police resources to perform a background check on her partner brings an end to their relationship. The Nemesis crew chase down a jet ski rider who has been menacing surfers. The identification of Miranda Latham’s killer leads to a hostage taking and a deadly confrontation between Frank and Marty Miller. Knocker has a word to Jonathon about giving Rachel access to her son.