Charles is caught in a deadly avalanche, prompting both him and Diana to reevaluate their commitment to their troubled marriage.

Grappling with mental health issues, Margaret seeks help and discovers an appalling secret about estranged relatives of the royal family.

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.

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.