On May 12, 2008, a catastrophic earthquake hit Sichuan Province in rural China, killing nearly 70,000 people, including 10,000 children. In town after town, poorly constructed school buildings crumbled, wiping out classrooms filled with students, most of them their parents' only child. But when grieving mothers and fathers sought explanations and justice, they found their path blocked by incompetence, corruption and empty promises.

• Documentary