British stockbroker Nicholas Winton visits Czechoslovakia in the 1930s and forms plans to assist in the rescue of Jewish children before the onset of World War II, in an operation that came to be known as the Kindertransport.

A German Tiger tank crew is sent on a dangerous mission to rescue the missing officer Paul von Hardenburg from a top-secret bunker behind enemy lines. As they make their way through the lethal no-man's land, they must confront not only the enemy, but also their own fears and inner demons. Fueled by the Wehrmacht's methamphetamine, their mission increasingly becomes a journey into the heart of darkness.