Trucks blown up, German soldiers found with their throats cut... The Russian Partisans were at work and it was left to Kessler and the men of Assault Section Sledgehammer to strike back. But, their efforts were not enough to satisfy the blood-lust of the German High Command. So, when the S.S. arrived, even the battle hardened veterans of Sledgehammer were horrified at the atrocities they witnessed. However, the High Command were worried. A massive armoured train carrying eighty tanks and hundreds of men was due to arrive soon and the partisans had marked it for destruction. Kessler and his men were ordered to ride the train, to guard it on its perilous journey across one hundred and fifty miles of enemy occupied territory. But, somewhere along that route, the partisans were waiting... No one on the train knew where or when they would strike. The men of Sledgehammer were plunged into their most dangerous mission yet and even Kessler doubted if they'd make it...