The AVE 103 is the speed demon of Spain, racing passengers 386 miles from Madrid to Barcelona in just two and a half hours. But traveling at such high speeds also means high risks. Discover one of the fastest trains on Earth and the cutting-edge technology required to keep it running on time. Meet the men and women working on the front lines and see how they respond when a heavy snowstorm threatens to compromise the brake system, which could bring this ride to a grinding halt.
Air Date: Aug 18, 2019