Aboard the Sea Hawk, Hannah Pritchard and her fellow pirates are sailing home to share the treasure they took from the British. But, during their journey, a British frigate attacks the Sea Hawk, destroying the ship. Hannah and a few crewmates narrowly escape with the treasure chest. Marooned on an island, Hannah and her friends are captured by the British. Readers follow Hannah Pritchard in her second pirate adventure as she faces brutal conditions as a British prisoner during the American Revolution.