Amid the fallout of the eventful house party a trip to the bright lights of London is planned. Here Sir John Bullock shows his true colours and Rose finds gallantry comes from an unexpected quarter.
Back at the Abbey Mary faces a pressing question about her future, Isobel accepts an offer from Dr Clarkson which rekindles her social conscience, and the manipulative Edna finds herself outmanoeuvred.
Join us behind the scenes as the cast and crew discuss the future for the characters of Downton Abbey.
Watch the exclusive interviews above.
An extravagant house party at the Abbey gives the Crawleys a chance to reconnect with old friends and culminates in a performance by opera singer Dame Nellie Melba.
But some guests prove more welcome than others and along with the celebrations come skulduggery and heartache.
Watch the trailer for Downton Abbey series four episode two.
How is Robert adjusting to Mary wanting more involvement in the estate? How close will Edith and Gregson become? And can Rose avoid causing any trouble at a York tea dance?
Julian Fellowes, Hugh Bonneville and Michelle Dockery welcome you back for the new series of Downton Abbey.
The fourth series sees the family reeling in the aftermath of terrible tragedy but with new life, in the form of babies George and Sybbie, comes new hope, as the much-loved characters take tentative steps into the Roaring Twenties.
Watch the first full length trailer for Downton Abbey series four.
How has the house moved on since the tragic events of the Christmas special?
Will the ever-changing world continue to encroach on the Downton way of life?
And, will Carson ever get the silver polished before the guests arrive?
See the amazing work of the crew in action, as they construct the Downton Abbey set from scratch at Ealing Studios.
Shirley MacLaine has certainly made an impact as Martha, join the cast of Downton as they share their stories about filming with an icon.
From reminiscing with Dame Maggie Smith about Laurence Olivier, to telling Rob James-Collier off for being 'The evil one', Shirley has definitely made an impression.
But just you wait until her character, Lady Cora's mother Martha Levinson decides to shake things up at Downton - once she's finished with them, things will never be the same again...