While Mary deals with Mercy's betrayal, Tituba must endure the torture inflicted upon her by Increase in his newly founded "House of Pain". Meanwhile, Anne stumbles upon one of her fathers artifacts and suddenly finds herself far from home.

The trial of John Alden is held, with Increase as his prosecutor and Cotton as his defense. However, the ordeal brings a few unexpected secrets to light, and Mary is ultimately faced with a difficult decision.