May 1944: High above the mountains of occupied Slovenia an aeroplane drops three British parachutists - brash MP Major Jack Farwell, radio operator Sid Dixon, and young academic Lieutenant Tom Freedman.

Greeted upon arrival by a group of Partisans, the men are led off into the countryside. Despite the distant crackle of gunfire, the war feels a long way off for Tom. The Partisans, too, are not what he was expecting - courageous, kind, and alluring, especially Jovan, their commander, and the hauntingly beautiful Marija.

As the enemy's net begins to tighten, they find evidence of massacres, of a dark and terrible band of men pursuing them. As they stumble their way towards a final, tragic battle, so the relationships within the group begin to fray, with Tom finding himself forced to face up to his deepest, most secret desires.