Secrets, scandal and a shaking of the ground. The doors of Downton are set to open once more on Sunday September 21st at 9pm and you've been cordially invited to share a first look at what lies ahead.
Watch the world exclusive of the brand new trailer.
To celebrate Downton's return, make sure you join us for daily quizzes and a look back at some of the best moments from previous series.
The family and servants travel up to London for the summer season.
The Crawley's impressive London residence, Grantham House, is seen for the first time.
Martha Levinson and Cora's brother Harold make an appearance.
And Carson treats the staff to a special day out.
Watch the trailer here and view the episode photos below.
Watch the trailer for Downton Abbey's 2013 Christmas Special episode.
It's the summer season and as part of Rose's 'coming out' she is to be presented at Buckingham Palace.
Watch the trailer for the series finale of Downton Abbey series four.
The Bizarre is coming to Downton, but will the fun of the fair bring with it some darker revelations?
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.