The Artemis finally reaches Jamaica, bringing Jamie and Claire that much closer to their goal. During a lavish ball on the island, the Frasers encounter old allies, as well as former adversaries who threaten to derail their mission.
After making a leap of faith, Claire washes up on an island where survival is her only option. Meanwhile, navigating treacherous waters crippled the Artemis, so Jamie devises a joyful moment for his crew in the midst of setbacks.
Claire races to discover the source of an epidemic aboard a disease-stricken ship before hundreds of sailors die. Meanwhile, Jamie locks horns with Captain Raines, and Fergus is torn between loyalty and love.
Claire and Jamie leave Scotland, sailing to the West Indies on an urgent quest. But when the superstitious crew looks for someone to blame after a string of bad luck, rescue comes from an unlikely source.
Brianna grapples with life-changing revelations and Claire must help her come to terms with the fact that she is her father's daughter. Roger brings news that forces Claire and Brianna to face an impossible choice.
While serving as a groomsman at Helwater, Jamie is pulled into the intrigue of the British family. In 1968, Claire, Brianna, and Roger struggle to trace Jamie's whereabouts, leaving Clarie to wonder if they will ever find him.
Jamie leads a lonely life hidden in a cave until Lallybroch is threatened by redcoats pursing the elusive Jacobite traitor; and in Boston, Claire and Frank struggle to coexist in a marriage haunted by the ghost of Jamie.
Season 3 begins with Jamie at the mercy of unforgiving British victors, following the Battle of Culloden, until a connection from his past provides his only hope of survival. Meanwhile, a pregnant Clarie attempts to adjust to life in 1940s Boston and life with Frank.