In the thick woods at the edge of the Bohemian Forest, two border guards are keeping watch - rifleman Kucera (Rudolf Jelínek) and dog handler Stencl (Josef Hajducík), whose sluggishness and clumsiness have won him the nickname Simpleton. The official army dog, the bitch Líza, picks up the scent...
It is the spring of 1945 and the end of the Third Reich is approaching. Yet all reserves are being deployed to save the Nazi regime. Even the students of one gymnasium are sent to build fortified defensive lines. But the conscious young men plan to escape and join the partisans. But the fighting...