This Friday, April 22, HBO will air a new episode from season four of our Emmy-winning show. Last week, we met the clean energy pioneers helping to solve climate change. This week, VICE investigates the living conditions for workers building the Trump International Golf Club in Dubai and China's massive business investments in Africa.The United Arab Emirates, and Dubai in particular, are often described as paradise in the Middle East. But the 5 million migrants working there, who make up more than half of the population, live in appalling conditions and often end up with no savings after years of work. VICE's Ben Anderson heads to Dubai to investigate the living conditions for the many migrant workers employed on a project bearing the name of a man who might be our next president.Then Isobel Yeung heads to the Democratic Republic of Congo, Kenya, and South Africa to find out why China is financing more infrastructure projects and selling more goods to Africa than any other trade partner in the world. We meet the characters behind the business deals to explore what this international partnership means for the future of global politics.Watch the trailer for Friday's episode, and keep an eye out for the rest of season four, airing Fridays at 11 PM, exclusively on HBO. If you're desperately in need of more VICE episodes to carry you through the week, you can watch our entire third season online now.