With few people left to trust, and with assassins on their tail, Kate and Osgood race to UNIT Command in Geneva. Will General Avary be able to help them?

But when death follows UNIT all the way from the English countryside to the snowy slopes of the Alps, Captain Carter finds himself in a race against time.

As the body count rises, Kate struggles to separate friend from foe, danger circles Osgood ever closer, and, high in the mountains, Josh comes face to face with the enemy...