After the shocking discovery that The Mission is far more complex and dangerous than he believed, and the only human who can guide him abandons him to protect her family…

When a suspected poacher is found dead from a gunshot wound, Vera must unearth the real truth behind his return to the Northumberland moors.

A still-recovering Carrie is sent to Kabul to help secure a peace deal with the Taliban. Elsewhere in Afghanistan, Max embarks on his own risky mission.