Dr. Mia Reid arrives on the Isle of Skye for a summer dig. She learns her friend and trusted colleague, Dr. Ethan Carter, is dead and valuable artifacts are missing. Interpol agent and Mia's former lover, Luke Forbes, is working the case with the police. They suspect murder and a smuggling ring. Mia and her team uncover a treasure with ties to Bonnie Prince Charlie. Then, two students are kidnapped, forcing Mia to trade the treasure for their release. During the rescue, she finds a collection of missing artifacts. Are the smugglers and kidnappers the same people? Can she dig up the truth before someone else dies?