We are in 1944, the Allies are moving towards the north of Italy while the partisans are resisting against the last German reprisals. This is what happens in Piazza al Serchio, where a team of Nazis is installed, while young people, hidden in the woods, try to sabotage them. The secret weapon of the Resistance is Anna, with her black and lively eyes, who infiltrates as a spy in the local German command.