Barnaby Kay

Zoe and Danny are tasked to 'play scarecrow' and follow a rogue scientist suspected of researching biochemical warfare. As he boards a North Sea ferry headed for Norway they plan to prevent him meeting his contact and obtaining funds.

Captured by Vikings, the Doctor and Clara must help protect their village from Space Warriors from the future; the Mire. Outnumbered and outgunned their fate seems inevitable. So why is the Doctor preoccupied with a single Viking girl?