An ambitious American fulfilling her dream of studying at Oxford falls for a charming Brit hiding a secret that may upend her perfectly planned life.

Pan Am Flight 103 explodes over Lockerbie 38 minutes after takeoff on Dec. 21, 1988, killing 259 on board and 11 on ground. Dr. Jim Swire loses daughter Flora and seeks justice with wife Jane.

Following an incident in her past, Cordelia now lives with her twin sister, Caroline in their late father's basement flat.