Even after roaming all over the globe, Kian84 is still curious. This time, he heads to the Tea Horse Road, the most alpine and rugged ancient path. Pani Bottle suffers from altitude sickness during this unpredictable journey in the highlands. Lee Si Eon, the super planner, struggles to stick to any of his plans, and DEX becomes even manlier. With Kian84, the four of them embark on an uncertain journey to the highlands. Following this difficult path, they delve deep into the local life of the ethnic minority by delivering like Sherpas and farming. Will the four sincere, yet clumsy adventurers who give their all for their one and only life be able to survive on the suffocating Tea Horse Road?