‘Downton Abbey’ Season 4 Episode 8 Spoilers: Will Season Finale Have Mr. Bates Back In Jail? [VIDEO]

"Downton Abbey" Season 4 ends this Sunday, February 23 in the U.S. and you can watch the special two-hour episode starting at 9pm ET/PT on PBS. Almost everyone is in London for Rose's coming-out and presentation as a debutante, including Cora's brother Harold Levinson (Paul Giamatti) and their mother Martha (Shirley MacLaine), visiting from the United States. Tom has a chance meeting with school-teacher Sarah Bunting, who asks him to show her around Downton Abbey. When they go to the gallery to better view the hall, Thomas sees them and later tells Lord Grantham, slyly implying that Tom had taken a woman to a bedroom. Watch the sesaon finale preview below!

At a party, Rose's indiscretion leads to card-sharp Lord Sampson stealing a letter from one of the Prince of Wales's lady friends, Freda Dudley Ward. When he learns of it, Lord Grantham mobilizes the family to get it back and prevent a scandal. He asks for the help of Bates, who uses his forging skills to get Mary into Sampson's flat, but the letter is not found. Mrs. Hughes finds a train ticket in Bates's coat pocket for York to London on the day Green died, she tells Mary and they agree to keep quiet, but later Mary has an attack of conscience and thinks she should reveal it. Only when Bates picks Sampson's pocket as he is leaving and retrieves the letter, does she relent and burn the ticket.

Edith has had her baby, a girl and left her in Switzerland, but she is regretting her decision. She ignores Lady Rosamund's protestations and decides to revert to her original plan and give her daughter to a local farmer. Gregson has still not been found or heard from but was last seen in a disagreeable interaction with a group of brownshirts. Thomas still tries to pump Miss Baxter for scandal, but she resists, helped by Molesley's support. At the celebration Ball, Mary is startled to learn from Gillingham that the egalitarian Mr. Blake is actually in line to inherit a huge estate from a cousin, so he is more suitable for her than she thought. Harold's valet has a crush on Daisy and invites her to move to the United States and be his employer's personal cook, but she declines. Ivy volunteers for the position instead. The Countess offers the staff a fun day out. Carson's suggestions are rejected as too dull and worthy and Mrs. Hughes tricks him into choosing the seaside. The episode ends with the two of them holding hands and paddling in the sea.