What is the theme in Shipwreck by Gordon Korman?

Teamwork is the main theme. The Island series written by Gordon Korman begins with Shipwreck. This story introduces the six adolescents who are enrolled in the CNC program. Charting a New Course is designed to take at risk youths out of their environments and teach them the skills of cooperation and teamwork. The course is a month long session in the Pacific Ocean and the adolescents who are enrolled begin to bond almost immediately against a common enemy - the ship's first mate and cook, Mr. Radford. His abrasive character gives them a focus for their distrust, anger, and separation issues while allowing them to form a cohesive group with a common adversary.