By 'deadly' we mean in the 'you could die' type of island, and not the Ibiza type of deadly island. This series sees predator detective and zoologist behaviour expert Dave Salmoni trekking to some of the most dangerous islands on the planet, where many of the world’s wildest creatures and top predators live. This episode he travels to an island in the South Pacific to investigate why its waters are home to a large concentration of sharks. Wouldn't want to be going in for a quick dip in those parts so you wouldn't.