Saturday 21st April at 5:50pm (BBC1)
It's 1930s New York. And as Manhattan finds itself in the grip of The Great Depression, people are disappearing off the streets.
Savage Pig Men are hiding in the sewers and, at the very top of the Empire State Building, the Doctor's oldest nemeses, The Daleks, are busy preparing their most audacious plan yet.
The Doctor and Martha must team up with the locals to defeat the Daleks and prevent an already depressed capital city from total ruin.
Holby City's Hugh Quarshie (pictured) guest stars.
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