The fiery crosses have been lit across the Highlands; lovers must part, as the call to arms brings friends and enemies home and the Jacobite Rebellion begins in earnest.

Brian and Ellen help their clans prepare for the coming rebellion, with varying levels of success. Julia and Henry learn more about the stones at Craigh na Dun from unexpected sources.

Julia welcomes a new member of staff to Leathers and learns unsettling news. Brian and Dougal train their men for battle. Ellen calls on lessons from her father and uses her wit to defend her family and her clan.

Ellen and Grace ride across the Highlands in search of Brian and Dougal's forces.

The Jacobite Army fights against the loyalists at the Battle of Sheriffmuir; men on both sides fight for their lives and for the future of Scotland, while Ellen and Julia face their own dangers; Colum holds fast at Leoch but doubts his resolve.

Ellen finds herself a guest among unexpected company; Brian and Murtagh attempt a daring rescue; Colum waits for news of the war; Henry makes an ally of a former enemy.