I just wanted to let you know that on September 25th Hope Ramsay's Last Chance Christmas comes out, which I will review. (Heads up, I really liked it!)
But I think in order for you to understand the book you have to at least read the first book in the series, called Welcome to Last Chance.
Currently the Kindle and Nook versions of Welcome to Last Chance is on sale for $1.99. I don't know how long the sale will last, so you should probably grab it soon.