08E05 - Episode #8.5

Everyone is shocked to learn of CIA agent Samuel Walker's death. It's been labeled a suicide but he had made appointment less than an hour before to see Harry Pearce as he had information on the secret meeting of rogue Western agents and Chinese spies in Bern. Soon after Walker's death, another American is killed and then a British agent. As they try to sort out the connection between the murders, Ros Myers is contacted by her one-time mentor, Jack Coleville, the man who recruited her. He's now retired and asks her to read his memoirs but she soon realizes that that she is being duped. As they desperately try to find Coleville and stop him from continuing his revenge driven campaign, Sarah Caulfield sees the perfect opportunity to cover up her own activities.