Where's the Next Shelter? is the true story of three travelers on the Appalachian Trail, a 2,000-mile hike that stretches from Georgia to Maine, told from the perspective of Gary Sizer, a seasoned backpacker and former marine who quickly finds himself humbled by the endeavor. He teams up with Megan, a sassy college grad whose indomitable spirit eclipses her lack of experience; and Lemmy, a cartoonist from overseas whose off-kilter commentary on the wonders and frustrations of the trail keeps everyone laughing.