Memories of Sam's past come back to haunt him as he prepares to finish the job he started seven years ago. Wallace secretly meets with a Chinese envoy.

Cast: Keira Knightley, Ben Whishaw, Sarah Lancashire, Andrew Buchan, Andrew Koji, Omari Douglas, Kathryn Hunter, Sam Troughton, Ella Lily Hyland, Gabrielle Creevy, Isabella Wei, Will Joseph, Adam Silver, Nathan Stewart-Jarrett, Agnes O'Casey, Ken Nwosu, Justine Mitchell, Finn Bennett