Prepare yourself for a sobering view of humanity as this distressing documentary follows the global refugee trail of more than 65 million people.

This is the greatest displacement of people since the Second World War and we see the desperate plight of people who have fled war, famine, climate change, only to face poverty and persecution wherever they land.

Filmed over the course of one year in 23 countries, we move from the Middle East to Afghanistan, Greece and the notorious ‘Jungle’ camp in Calais. There are interviews with refugees and aid workers but there is no need for a narrator.

Its a profoundly personal odyssey from Chinese director Ai Weiwei, who was the artistic consultant on the Beijing National Stadium for the 2008 Olympics and has suffered arrest for his political activism.

There’s no respite from the crisis as Weiwei wrings every drop of impact from the hardship, disease and death suffered at every step of the journey.