In this final programme, Seahorseman chronicles the remarkable resurgence of Kealan Doyle's fortune. With the unprecedented success of his new tropical fish business, he decides to restart the breeding programme on a larger scale, restocking his tanks with a new variety of seahorse. We now follow him on an extraordinary fact-finding visit to China and Indonesia, where he experiences the devastating effects of the seahorse trade at first hand - returning with new stock and a renewed sense of his mission in life.