After discovering their troop is in danger of disbanding, Snoopy and the Beagle Scouts set off to immerse themselves in nature and the great outdoors to earn their badges, with the Beagle Scout Manual as their guide. Meanwhile, Charlie Brown and friends enjoy their summer at Camp Spring Lake, crossing paths with Snoopy as they experience hiking, swimming, sitting around campfires, and everything summer camp and the outdoors have to offer.
故事以2020年东京奥运会之后的日本为背景，通过“极普通的家庭故事”，讲述了在日本逐渐沉没的情况下，面对终极选择的人们的现实生活。
