Ivan's Childhood (1962)

Set during World War II, Ivan, a 12-year-old orphan, is enlisted as a spy by the Russian military. With a burning desire for revenge, he infiltrates enemy lines and carries out covert operations. Along the way, Ivan forms a surrogate father-son relationship with a military captain, who helps him navigate the dangerous world of espionage. As Ivan's childhood memories collide with the brutality of war, he must confront the consequences of his actions.