<p>Katie Lovely signs up her class for a project, writing letters to Marines serving overseas, but a calculation error means she has to participate along with the class.</p><p>She isn't prepared for what happens after she gets the first letter.</p><p>Sergeant Major Mark Gunner is serving his last tour and looking forward to getting out of the Marines. When he gets a letter that captures his heart, everything suddenly changes.</p><p>Their worlds connect and letters flow, creating a love unlike an...