Life in Paris is not without its trials as Jamie struggles to triumph over the traumas of his past. A fortunate meeting with Jacobite leader Prince Charles presents opportunities, while the Duke of Sandringham’s presence brings complications.

Jamie’s days and nights are dominated by political machinations, while Claire finds solace in her healing skills. As their plan to stop Culloden progresses, including engaging the aid of a young pickpocket, the past threatens to derail their forward momentum.

Claire and Jamie throw an elaborate dinner party intended to derail investors in Prince Charles’ war effort. Meanwhile, Claire’s revelation that Jack Randall is alive sparks Jamie in an unexpected way as he and Claire struggle to regain their physical intimacy.

Reunited, Jamie and Claire attempt to extinguish the fires their dinner party ignited; however, Claire is set off on an unexpected change of course. Jamie and Claire’s relationship is put to the ultimate test when the past rears its ugly head.

Jamie and Claire use Claire’s medical knowledge to devise a scheme to stop a wine deal which could fill the Prince’s war chest. When Claire learns Jamie has gone back on his word, the couple are met with dire consequences that will forever change their lives.

Jamie relies upon Claire's knowledge of history to lead the Jacobite army into a crucial battle. Claire is reminded of the true cost of war as she attends to the dead and dying.

Claire and the Highlanders head north after the Jacobite leaders decide to halt their march on London. Claire has an unexpected reunion after a band of redcoats makes trouble for the Scots.

Jamie works to divert the Jacobite army away from imminent slaughter. Claire tries to provide comfort to a sick Alex Randall who shares an unusual plan to save the mother of his child.

In the present, Claire reveals the truth to her daughter, Brianna. In the 18th century, Jamie does everything he can to save his loved ones as the Battle of Culloden begins.

Jamie's past provides his only hope of survival following the Battle of Culloden. A pregnant Claire attempts to adjust to life in 1940s Boston.