Alpha Force: Hostage

Flying to Northern Canada to investigate reports of illegal dumping of toxic waste, the Alpha Force team must dive into an icy river, cross the harsh landscape on snowmobiles and test their caving skills to complete their mission. But they need all their courage and determination when they come face-to-face with a man who is ready to kill - or take a hostage - to stop them.

High-octane thrills from a master of adventure, bestselling author, TV presenter and an ex-SAS hero CHRIS RYAN.

Includes Chris Ryan's top SAS tips on Safety and Survival in and around water.