When Jim Hawkins gets his hands on a legendary treasure map, his mother Bess's clever and decisive actions leave him holding valuable knowledge that puts both of their lives in danger. Sailing aboard The Hispaniola, Jim and Bess are caught between the charming, terrifying pirate Long John Silver, and the debonair, duplicitous British agent Aaron Graham. Jim has to grow up fast as he and his mother fight for survival on a voyage where alliances shift, secrets multiply and peril closes in from all sides.