I didn't get too far into the game, but it's pretty much a survival type game. Your character ends up falling off a boat I think, and you're stuck with one other person on this island. You have to keep the two of you alive, and eventually get rescued.
It's a pretty fun game, I just have a hard time staying focused on longer games like this one, so I was never able to finish it. I started over three or four times though, hahaha