Kelly ventures to mysterious islands around New York to unearth the secrets that lie hidden in their past. On Hart Island, she meets with experts who enrich our understanding of the site’s rich history: before it became the city’s cemetery for unclaimed bodies, Hart Island was the training ground for African American regiments during the Civil War, as well as a mental asylum and hospital site. We also travel up the Hudson River to an abandoned castle on Bannerman Island, and explore the remains of a lost colony on Ruffle Bar in Jamaica Bay. Kelly also takes a tour of the only privately owned island left in New York City, two and a half acre Rat Island in the Bronx. We take to the water in this episode to the small islands we often see in the distance but can’t set foot on until now.