Paul and Brennan join forces to identify new suspects for Kate's killer. Paul thinks anyone associated with the corruption ring Brennan uncovered is a possibility. Brennan agrees, but the details of that internal investigation are contained in top secret files. Despite Paul and Brennan's best efforts, they fail to gain access to the files, which are kept in a secure storage facility.

Lauren returns from her honeymoon, while Brad returns from Adelaide having drawn a blank in the search for their daughter. Brad has some damage control to sort out with Terese, who is still hurt by his betrayal, while Lauren decides she needs to put her family first. But they're both still wracked with guilt over their illicit kiss.