In the coastal town of Badagry, Nigeria, a local guide educates a group of schoolchildren about the harrowing history of the transatlantic slave trade, emphasizing the exploitation of their ancestors. Meanwhile, in Nouadhibou, Mauritania, a modern-day smuggler navigates the dangerous and illegal business of transporting migrants across the sea to Spain. The narrative weaves together these two distinct yet interconnected stories, highlighting the enduring legacy of human trafficking and the desperate measures people take in search of a better life.