December, 1944. The US Army 101st Airborne Division ist trapped in the Belgian town Bastogne. As thick clouds hang over the area preventing the airforce from providing cover and supplies, the situation for the encircled men becomes worse every day.
The film focuses on one squad of the 101st led by cigar-chomping, battle-stained sergeant Kinnie as they wait for the clouds to break. Meanwhile, they must survive German spies in US Army uniforms, German artillery, winter weather, dwindling supplies, and the fear of being trapped by a hostile force.