In Outlander season 7, episode 7, Roger connects with his ancestor Buck Mackenzie, who has traveled to the future. They reconcile and plan to rescue Jemmy, who has been kidnapped. In the upcoming episode, Roger and Buck will travel back in time together. In the book storyline, they end up in 1739 Scotland and meet important figures from their past, including Jamie Fraser's family and fellow time travelers. They also reunite with their fathers and have significant interactions that impact their stories.