When a former colleague is charged with murder but refuses to speak in her own defense, the Bletchley Circle women (Anna Maxwell Martin, Julie Graham, Sophie Rundle, Rachael Stirling) work to prove her innocence in the two-part thriller "Blood on Their Hands." Then, another two-part tale, "Uncustomed Goods," finds Millie's dabbling in the post-WWII black market drawing her into connections with a dangerous human-trafficking operation. Hattie Morahan co-stars. 180 min. total on two discs. Widescreen (Enhanced); Soundtrack: English Dolby Digital stereo; Subtitles: English (SDH); interview.