An impressive lineup of economists, journalists, and investment professionals helps recount a real-life horror story: how the collapse of the housing market led to a crisis of confidence that spread with sickening speed through the U.S. banking system last fall, leading to the biggest financial crisis since the Great Depression. With chilling detail, Frontline follows the collapsing dominos—Bear Stearns, Freddie Mac and Fannie Mae, Lehman Brothers, AIG—and explains why key decisions by then–Treasury Secretary Henry Paulson and Federal Reserve Chairman Ben Bernanke failed to stop the catastrophic chain reaction. Tuesday, Feb. 17, at 9 p.m., PBS; check local listings