Episode PremiereMay 18, 2013
Show Period2006 - Now
Production CompanyBBC Worldwide Productions, CBC
Clara is summoned to an impossible conference call, alerting her that the deadly Whisper Men are closing in on Vastra, Jenny and Strax.
Someone is kidnapping the Doctor's friends, leading him toward the one place in all of time and space that he should never go. It's a deadly trap that threatens to unravel his past, present and future...