In 2014, a video shot on a cell phone goes viral on YouTube, showing four men clinging to wreckage in the middle of the sea. Shots ring out. The men are brutally killed – one by one. No one knows where it happened, why, or who committed these crimes. But this is not uncommon; The high seas are largely beyond the reach of the law, and criminals roam free. In the six-part series LAWLESS OCEANS, special investigator Karsten von Hoesslin takes on this mysterious case, relentlessly following the trail all over the world for clues to determine the truth. On the way, he encounters drug smuggling, people trafficking, illegal fishing and piracy, painting a dark picture of the lawless oceans.