John Grisham's highly anticipated sequel to his bestseller "The Firm" is set to be released by Doubleday this fall. Titled "The Exchange: After The Firm," the legal thriller will bring back fan-favorite protagonist Mitch McDeere, with a publication date of October 17. The book will be available in hardcover, ebook, and audio formats published by Penguin Random House. The story follows McDeere, now an international lawyer and partner in a mega-firm, who is forced to negotiate the release of a kidnapped associate during a dangerous trip to Libya. (Anybody up for a movie sequel?)