Jiang Wanning and her father accidentally drive a refrigerated truck through a tunnel, arriving at Qingshiguan, a place suffering from a prolonged drought and food shortage. Facing an unfamiliar era, instead of only thinking of hoarding goods for speculation, she uses watermelons, food, clean water, and modern tools to open a path of mutual assistance. Border General Shen Yanchuan protects the people with loyalty and trust, standing shoulder to shoulder with her to guard the grain route and treat the wounded. Journey after journey connects two civilizations with a single truck, turning goodwill, integrity, and dedication into the strength that illuminates the border. Goodwill can ultimately make hope be reborn.