The Conspiracy About the Island

A conspiracy about an island that a girl doesn't know she's in the conspiracy and being used against her knowledge. The Government is trying to take back a certain island, but due to certain reasons haven't been so successful. So they decided to team up with someone to send the daughter of the woman to the island and make it seem as an "accident" and she has to learn new ways to fight, and protect this island. But why does she feel so loyal and feel like she needs to protect this island at all costs? What's so different about this island, than any other island? Why does the government want this island? Will she falter like the government plans her to do so and give over the island to them, or does she fight them?