What really happens in a multi-vehicle pileup? Surprisingly little is known about the behavior of cars and drivers in uncontrolled, real-world accidents. In this two-part special, go behind the scenes as scientists design a first-of-its-kind experiment to test a large-scale crash. The plan is for eight drivers to drive eight different types of cars by remote control at 70 mph down a hazardous roadway. They only have one shot. Then, follow scientists, engineers, and accident investigators as they analyze a treasure trove of data – more than they’ve ever been able to work with before. See what they find, and discover insights about driver behavior and vehicle design that could save lives.