The episode will last for 45 minutes and concludes at 9.20pm. Mummy on the Orient Express, written by newcomer Jamie Mathieson, will air on the same day on BBC America at 9/8C.
The Doctor and Clara are on the most beautiful train in history, speeding among the stars of the future - but they are unaware that a deadly creature is stalking the passengers.
Once you see the horrifying Mummy you only have 66 seconds to live. No exceptions, no reprieve. As the Doctor races against the clock Clara sees him at his deadliest and most ruthless. Will he work out how to defeat the Mummy? Start the clock![Source: Digiguide]