‘The Categories Of Life’ airs in the UK at 9pm on Thursday 11th August on BBC One and in the US at 10pm on Friday 5th August on Starz.
Written by Jane Espenson, the episode sees the team go undercover and discover the terrible truth behind the “miracle”; but the enemy is closing in, and death is about to make a shocking return.
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The clip sees Gwen back in Wales and on a mission to find her father and take him home…