The fourth book in Chris Ryan's hugely popular SAS Danny Black series, by the creator of the hit TV show Strikeback.

Readers can't get enough of the Danny Black series:
'When it comes to a storyline that grips you Chris Ryan is master class' Reader review ⭐⭐⭐⭐⭐
'Twists and turns and plenty of suspense' Reader review ⭐⭐⭐⭐⭐
'Chris is a mastermind' Reader review ⭐⭐⭐⭐⭐
'I'm hooked on these' Reader review ⭐⭐⭐⭐⭐

A migrant boat battles through the rough Mediterranean sea, its passengers desperate, starving and scared. They are also being ruthlessly targeted by the SAS - for Islamic State militants hide among their numbers.

When he learns of plans for a sickening terrorist atrocity in London, SAS operative Danny Black is tasked with infiltrating the most dangerous theatre of war in the world: Islamic State heartland. But as Danny pits himself against violent extremists, he learns that it's not just the UK that's under threat.

His very presence on the mission has put at risk the safety of his family, and he discovers there are greater forces at work here who do not care if the innocent live or die. There is nothing Danny will not do, no line he will not cross, to protect his family, whether that makes him a good soldier or a bad one. Because as he is fast learning, it is sometimes impossible to tell the difference between the two. And as every SAS soldier is trained to understand, the worst threats often come from the most unexpected places . . .