Sailing up the furthest reaches of the Amazon on assignment for the British Secret Service, Alex Hawke is captured by a brutal tribe of indigenous cannibals. Forced into slave labour, he witnesses the unimaginable: vast armies are being recruited and trained deep within the Amazonian jungle. Possessing weapons only dreamed of by the Western allies, their aim is to launch a vicious jihad that will unite one continent - and destroy another. Somehow Hawke must escape his captors and live to tell the tale.

From black magic, poison-tipped arrows and blowguns to an awesome arsenal of the most advanced military hardware, Hawke faces insurmountable odds as he searches for a river with no name in a quest to seek out and destroy a lawless mastermind who threatens the West's very existence.