In this week's episode of Downton Abbey, Sybil's interest in politics lands her in trouble, Bates makes a shocking revelation about the wine thief, Edith finds a new suitor, Carson worries about Mary's reputation, and Sybil is injured in a political disturbance.Main CastHugh Bonneville as Robert Crawley, Earl of GranthamMichelle Dockery as Lady Mary CrawleyJessica Brown Findlay as Lady Sybil CrawleyLaura Carmichael as Lady Edith CrawleyBrendan Coyle as John BatesJoanne Froggatt as Anna BatesJim Carter as Mr. CarsonPhyllis Logan as Mrs. HughesRob James-Collier as Thomas BarrowCrewCreator: Julian FellowesDirector: Brian PercivalWriter: Julian FellowesOriginal Air Date: October 31, 2010Sybil's Political ActivismSybil has been increasingly interested in politics lately, and she attends a rally with Branson. However, her father, Lord Grantham, is furious when he finds out and forbids her from attending any more political events.The Wine ThiefThe mystery of the wine thief has been plaguing Downton Abbey for weeks, and it finally comes to a head in this episode. Bates is accused of being the thief: he knows who the wine thief is, but he refuses to tell anyone else. He then hands in his notice, saying that he can no longer work at Downton Abbey with the thief still there.Edith's New SuitorEdith seems to have found an unexpected admirer in Sir Anthony Strallan. Sir Anthony is a wealthy landowner who is interested in courting Edith. Edith agrees to go on a date with him.Mary's ReputationCarson receives a letter informing him of the rumours that are circulating about Mary. The letter says that Mary is being talked about in town for her relationship with Mr Pamuk. Carson is worried that the rumours will damage Mary's reputation.Sybil's InjurySybil goes to the counting of the votes for the local election. When things get rowdy, she is knocked unconscious. Branson is blamed for her injuries, but Matthew comes to his defence.Matthew Proposes to MaryThe episode ends with Sybil recovering from her injuries and Matthew proposing to Mary. But will she accept?