Against the backdrop of President Trump's much-trumpeted wall, Reginald D. Hunter takes a 2,000-mile road trip along the US-Mexico border to explore how romance and reality play out musically where third-world Mexico meets first-world USA on this broken road to the American dream. Classic American pop and country portray Mexico as a land of escape and romance, but also of danger; Hunter explores the border music as it is today, much of it created by musicians drawn from the 36 million Mexican-Americans who are US citizens.

• BBC Studios
• Reginald D. Hunter