Canary

In 1922, a young boy named Sonny works in an underground coal mine with a group of adult miners. He takes care of the caged canary which the men use to detect deadly methane gas. Hoping to escape the dark and dank underground, the boy teaches his bird to play dead. The clever prank sends the panicked miners to the surface, where Sonny and the canary enjoy playing in the sunlight. When the boy naively ignores the danger of the game he is playing, it leads to a tragedy he may never recover from.