There are lots of changes happening at Molly McQueen's Agency. Biggest of all is that Molly herself must decide whether or not she should move to Australia to be with her family. If she does, it will mean the end of the Agency she has dreamed of and worked so hard to build. Before she decides on her future, however, Molly enjoys a trip to Pitlochry Festival Theatre to see her old friend Deanna on stage. But when she goes for a walk through the hills at Killiecrankie she comes across a frightening scene. An elderly man has tumbled down a hill and has serious head injuries. As her friend goes for help, Molly stays with the man and tries to comfort him, convinced he does not have long to live. Then, unexpectedly, he hands her a pouch and tells her to 'warn them'. Little does she know that those words and the pouch the man has given her will set in motion a chain of events leading to one of the most challenging cases of her career.