After questioning Brendan's attacker, Kat tries again to track down Josh, but instead comes face-to-face with the last person she ever expected to see.

Cast: Mary Malone, Ashley Walters, Rosalind Eleazar, Oscar Kennedy, Jessica Plummer, Charlie Hamblett, Arian Nik, Grace Keeling, Kieran Burton, Richard Armitage, Catherine Ayers, Lisa Faulkner, Felix Garcia Guyer, Steve Pemberton, Marc Warren, Jo Martin, Faye Alexandra, Geff Francis