Series 4 Episode 7 airs at 9pm on Sunday 18th March on BBC Three and sees tensions run high when Cutler takes Tom under his wing. He’s got big plans for Tom – together they’re going to be history makers.

Meanwhile, Annie is called to Purgatory by the mysterious woman from the future.

> Order the Series 4 DVD on Amazon.

Watch BBC America’s Series 4 trailer…

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