Airs Sunday, September 11, at 6 p.m. When students go to college, they expect to be in college classes. But in fact, 4 in 10 students end up in basic math and English, re-learning what they were supposed to learn in high school. The vast majority of them never get a college degree. What’s going on? Most people point to failures in the nation’s K-12 education system, but this documentary probes deeper, exploring how students are placed into these classes, what skills people really need to be successful in college, and how best to learn those skills.