On a lost and powerless cargo ship, where the crew were disappearing one by one, the Doctor, Bill and Nardole struggled to get to the bottom of the mystery. The ship was carrying over five-hundred Heavenly Hosts as cargo - the price suspects in the case... but it soon became apparent that there was more than one enemy on this ship: some Weeping Angels were also on board! Now, Missy has stolen the TARDIS, the Doctor has been sent back in time by the Angles, and the Judoon - with the assistance of the (reformed?) Blon Fel-Fotch - have seized control of the ship. Could things get any worse?