Elizabeth stole the medallion from Will Turner when she was sailing back to Port Royal city.
After a period of time, the pirates came back to Port Royal city to giv the medallion back; they ruined the city by gunners and killed a lot of people.
Jack sparrow had been got out by Will Turner to help him pursue the pirates.
Turner and Elizabeth are the most important character in a story and Jack sparrow too.
Jack helped Turner to save Elizabeth from the pirates.