Following its historic debut in Rio de Janeiro in 2016, the Refugee Team is heading again to this summer's Tokyo Olympics and Paralympics. Record numbers of people have been forced to flee from their homelands in recent years -- currently more than 70 million. Some of them are turning to sports and setting their sights on the world's biggest stage. We follow refugee athletes from Syria, South Sudan and Cameroon who are overcoming formidable challenges on their long road to Tokyo.