Outlander's Jamie and Claire are on the rocks in more ways than one, and it's all thanks to Black Jack Randall.

Claire (Caitriona Balfe) managed to keep Black Jack's (Tobias Menzies) survival a secret for the first half of season 2, but, now that the cat's out of the bag, the Sassenach can no longer keep a lid on Jamie's (Sam Heughan) anger. The Scotsman is out for revenge, and no amount of promises will keep his quest for vengeance in check.

"He can't help it," Heughan told IGN of Jamie's upcoming decision to duel his nemesis. "He sees Randall doing something to someone he loves ... and it's uncontrollable fury that Jamie has. He sees the same thing happening to Fergus that has happened to him, so it's totally understandable in my mind that he does this."

Unfortunately for the Frasers, the events of this Saturday's "Faith" will have devastating repercussions. Unlike in the Highlands, dueling is illegal in 18th century Paris. No matter what country he is in, Jamie will always find a way to land himself in prison. Soon our hero will be able to add his initials to the inside of the Bastille.

While he's locked away, however, Claire will be at her most vulnerable. Her life - and that of her unborn child - is on the line.

"Claire is brought to L'Hopital Des Anges where doctors try to save her life and that of her unborn baby," Starz teased. "King Louis asks Claire to judge two men accused of practicing the dark arts - one an enemy, one a friend."

Can the Sassenach juggle her pregnancy, Jamie's incarceration, and the King's demands? It's a lot to ask of the ailing time traveler, and you can bet Claire will have to make some unsavory compromises in the coming weeks.

Find out more when Outlander airs Saturdays at 10 p.m. ET on Starz. Click the video below to see a preview for the series' next episode, "Faith."

Tags: Outlander television Starz