Ex-military policeman Palmer is accustomed to death, but this is different; this is the brutal murder of someone he was once close to. He knows only one way to deal with it: find the killers.
Meanwhile, Riley's next job is a profile of controversial businessman "Kim" Al-Bashir. She soon realises that there are sinister forces working against him, and if she doesn't tread carefully she could end up losing her assignment. And, like Helen, quite probably her life.