From October 1934 to October 1936, the Red Army trekked tens of thousands of kilometers across the country. The arduous journey is known as the Long March, an enormously significant event in the history of the Communist Party of China. During the expedition, the Red Army battled the enemy more than 600 times, crossed almost 100 rivers, scaled more than 40 peaks, including more than 20 snow-capped mountains with elevations above 4,000 meters, and traversed vast marshlands and grasslands known as "death traps." CGTN reporter Meng Qingsheng takes the same route to follow the steps of those before him in the Long March at Riganqiao Marsh in southwest China's Sichuan Province and explores the secrets leading up to the Red Army's final victory.