A war film that was targeted at children, Letter with Feather focuses on a young boy who, through his wits, delivers an important message to the 8th Route Army while evading Imperial Japanese forces during the Second Sino-Japanese War.

Haiwa (Cao Yuanyuan) is a twelve-year-old boy and the son of a guerrilla leader.

At one point, he is forced to hide the dispatch under a sheep while posing as a shepherd.

Delivering the important letter, the Communist army is able to use the information contained therein to capture a Japanese commander.

Letter with Feather was extremely popular in China, with its message of patriotism to children.