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2/5 Barton and his team head deep behind German lines to track down a terrifying new weapon.
BBC Radio 4 Extra
1/5 It's 1945 and the Allies are certain to win the war. Then an unidentified aircraft appears
1/2 As the TARDIS materialises in a strange medieval village, a terrified youth is on the run.
4/4 Reynolds and Leon prepare for a battle of minds. Who will survive? Read by Rhashan Stone.
3/4 Leon plans for the exciting new way of life that his enhanced mind has revealed.
2/4 With his heightened intelligence, Leon develops ingenious ways to outwit the CIA.
1/4 A coma patient's treatment for a horrific accident has unexpected benefits.
5/5 The struggle at the South Pole continues, but there is only room for one survivor.
4/5 The weather worsens and Bowers goes on the rampage. The others have to run. But where?
6/6 The Jago children end up in the midst of war, with the deadly Hyena on their trail.