Broadcast: Saturday 20th April 2013
11:00pm-11:43pm CDT (04:00 GMT) < > « »
Iowa Public TV

Featuring: Matt Smith, Karen Gillan, Arthur Darvill, Neve McIntosh, Robert Pugh, Nia Roberts, Meera Syal

It's 2015 and the most ambitious drilling project in history has reached deeper beneath the Earth's crust than man has ever gone before - but now the ground itself is fighting back. And when the Doctor, Amy and Rory arrive in a tiny mining village it's not long before they find themselves plunged into a battle against a deadly danger from a bygone age.
Synopsis Source: IPTV website TV listing