A raging river. An iron chain bridge. The enemy waiting on the far side.

In May 1935, the Red Army faced a seemingly insurmountable challenge at the Dadu River in Sichuan Province. But there was no time to hesitate, and no certainty of survival.

Ninety years later, a new generation is facing unprecedented challenges, this time in China's emerging commercial space industry.

Is there a connection between the soldiers racing across a bridge and the engineers striving to return rockets safely to Earth? Different centuries. Different stakes. But the same question: How far would you go to achieve the impossible? Tune in to CGTN's Long March documentary Breaking Through to find out.