Jamie discovers Arch Bug has been keeping a dangerous secret. In the 20th century, Roger and Brianna find a link to Jamie and Claire.

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.

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 fights in the pivotal Second Battle of Saratoga. Roger and Brianna search for Jemmy.