Marshall begins his new job at Barney's law firm and quickly finds that Barney's colleagues are crude, obnoxious and laddish, mocking everything from his packed lunch to his fiancé. However, he doesn't want to give up, and learns to adapt.
When Mary discovers who was witness to the witches' ceremony, she deliberates a course of action to take.
John and Cotton take advantage of a rare stellar occurrence in order to interrogate a captured witch.
Mary finds herself in disagreement with her coven. Alden and Cotton uncover a dangerous witches' relic.
An old nemesis of Alden's arrives in Salem with secrets that could destroy him. Mary loses her grip on Mercy.