Downton Abbey opens its doors to the public for charity, and tensions between Cora and Violet reach a dramatic climax.

Cast: Wendy Albiston, Zac Barker, Antonia Bernath, Hugh Bonneville, Patrick Brennan, Laura Carmichael, Jim Carter, Raquel Cassidy, Paul Copley, Brendan Coyle, Michelle Dockery, Kevin Doyle, Sebastian Dunn, Michael Fox, Joanne Froggatt