Western intelligence is in meltdown trying to locate Salim Dhar, the world's most wanted terrorist. But only renegade MI6 officer Daniel Marchant knows how to find him. Everywhere Marchant moves, from Marrakech to Sardinia, he is shadowed by the exotic CIA agent Lakshmi Meena. As Britain braces itself for a series of terrifying terrorist attacks, Marchant is forced to confront dark personal truths about loyalty and love.