After serving as a British Army nurse in World War II, Claire Randall is enjoying a second honeymoon in Scotland when she is transported to 1743; dealing with a mysterious world where her freedom and life are threatened.
On the way to Scotland, Jamie is pulled back into the Revolutionary War; William is sent on a covert mission; Roger and Brianna struggle to adapt to life in the 1980s.
At Ticonderoga, Jamie and Claire prepare for an imminent British assault; Roger compiles information about time travel while Brianna earns the respect of her coworkers.
Jamie prepares to face British forces in battle. Roger and Brianna question Buck MacKenzie's intentions in the 20th century; William fights in the First Battle of Saratoga.
Jamie, Claire, and Ian return to Lallybroch; Ian reconnects with his family in a time of need, while Claire deals with the fallout from a long-held secret; Roger and Buck search for Jemmy in the past.
Claire turns to John Grey for comfort as they process difficult news; Ian and Rachel discuss their love and their future; Brianna confronts an intruder at Lallybroch.
Denzell must perform a dangerous operation with the skills he's learned from Claire; William asks for help from an unexpected source in his mission to save Jane.
While visiting the Cherokee, Ian encounters a man from his past who dredges up painful memories of his time with the Mohawk; Jamie meets an Indian agent who challenges his convictions, causing him to reevaluate.
Claire and Jamie experience the rising tensions in the colonies when they attend a Loyalist event in Wilmington in honor of the Scottish heroine Flora MacDonald.
A dysentery epidemic spreads on the Ridge, and Claire falls deathly ill; she is almost recovered when the Christies arrive and drop a bombshell; as nefarious rumors spread like wildfire on the Ridge, tragedy strikes.
Claire struggles with her demons as a nefarious rumor begins to spread on the Ridge; tensions rise as the residents fear there is a dangerous person in their midst.
Richard Brown and his Committee of Safety arrive to arrest Claire for murder; however, due to the rising political tensions in the colonies, Brown's plan to find a judge for a trial does not go as expected.
Following celebrations in honor of Brianna and Roger's wedding, Governor Tryon reminds Jamie of his obligation to hunt down and kill Murtagh Fitzgibbons.
Jamie continues his search for Murtagh with the assistance of Lieutenant Hamilton Knox and he is forced to contemplate whether or not he is on the right side of history.
Roger leads Jamie's militia to the trading post of Brownsville and finds himself embroiled in a bitter feud; Jamie and Claire arrive to find that Roger's unusual strategy may have cost them the loyalty of the militia.
The Frasers must come to terms with all that has changed in the aftermath of the Battle of Alamance Creek; Brianna tries to help Roger overcome the trauma he has endured; an unexpected visitor arrives at the Ridge.
When Jamie is bitten by a venomous snake, Claire fears she may not have the resources to save him; Jamie asks Roger to complete an important task in the event of his death.
Jamie and Roger implement their plan to eliminate the threat looming over them, but it goes awry; Brianna is forced to confront her greatest fear and fight for her and her son's lives.
A revelation about Jemmy forces Roger and Brianna to choose between staying in the 18th century and returning to the safety of the future; Jamie finds that unrest in the back country has given rise to a new power.
Claire struggles to survive brutal treatment from her captors, as Jamie gathers a group of loyal men to help him rescue his wife; Roger and Brianna's journey takes a surprising turn.
Jamie leads a lonely life hidden in a cave until Lallybroch is threatened by redcoats; Claire and Frank struggle to coexist in a marriage haunted by the ghost of Jamie.
Imprisoned Jamie learns that an old foe has become the warden and has the power to make his life hell; Claire and Frank both put their best foot forward in marriage, but an uninvited guest shatters the illusion.
Jamie is pulled into intrigue while serving as a groomsman at Helwater; in 1968, Claire, Brianna and Roger struggle to trace Jamie's whereabouts, leaving Clarie to wonder if they will ever find him.
After decades apart, Jamie and Claire finally reunite and rekindle their relationship; Jamie's new business dealings could jeopardize the couple's hopes for a simple life.
Claire follows her conscience as a surgeon despite the risks to her and Jamie's lives; Jamie tries to evade the reach of the Crown as its representative closes in on his illegal dealings.
Claire returns to Lallybroch with Jamie, where she does not receive quite the reception she was expecting; the choices Jamie made during their time apart comes back to haunt them.
Claire and Jamie sail to the West Indies on an urgent quest; when the ship's superstitious crew looks for someone to blame following a string of bad luck, rescue comes from an unlikely source.
Claire races to discover the source of an epidemic aboard a disease-stricken ship before hundreds of sailors die; Jamie clashes with Capt. Raines; Fergus is torn between loyalty and love.
After making a leap of faith, Claire washes up on an island where survival is her only option; Jamie devises a joyful moment for his crew in the midst of setbacks.
The Artemis finally reaches Jamaica, bringing Jamie and Claire much closer to their goal. During a ball on the island, the Frasers encounter old allies, as well as former adversaries who threaten to derail their mission.
Claire plays a game of cat and mouse with an old adversary as she searches for young Ian; the Frasers race through the jungles of Jamaica to prevent the unthinkable.
Claire and Jamie enter the lavish world of French society in an effort to infiltrate the Jacobite rebellion led by Prince Charles Stuart and prevent the battle of Culloden.
Jamie struggles to overcome his past; opportunities arise following a fortunate meeting with Prince Charles; the Duke of Sandringham's presence causes complications.
Claire and Jamie reunite and attempt to extinguish fires until Claire makes an unexpected change of course; Jamie and Claire's relationship is tested when the past rears its ugly head.
Jamie and Claire use Claire's medical knowledge to come up with a scheme to stop a deal which could fill the war chest; Claire learns Jamie has gone back on his word.
Doctors at L'Hopital des Anges attempt to save the lives of Claire and her unborn baby; King Louis asks Claire to judge two men accused of engaging in the dark arts.
Claire and Jamie attempt to elicit support from Jamie's grandsire, Lord Lovat; Colum MacKenzie arrives with plans of his own; Lord Lovat makes moves to advance his own interests.
Claire and Jamie reunite with the Lallybroch and MacKenzie men during training; Jamie and Claire wage personal battles; an Englishman arrives in camp with new information.
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; Alex 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.
World War II combat nurse Claire Randall is transported back to 1743 Scotland, where she is kidnapped by Highlanders and meets an injured man named Jamie.
Claire is taken to meet the Laird and befriends the mysterious Geillis Duncan; the clan decides to keep Claire as a prisoner after they learn of her medical skills.
Claire plans to attempt an escape during the "Gathering," but her plans are thwarted by a run-in with a drunken Dougal and a surprise encounter with Jamie.
Claire is brought along on the MacKenzie rent-collecting trip; Dougal uses Jamie's scars to drum up sympathy for the Jacobite cause; Claire remembers that a famous moment in Scottish history will soon occur.
Claire and the Highlanders work on a plan to rescue Jamie; a visit from Black Jack causes Jamie to realize a fate exists that is worse than his death sentence.