Reply Pyeongchang, 100°F

Ji Hoon is a star athlete who has dreamt of participating in the Olympics, but he fails to join the national team for the Rio Olympics due to an injury. Frustrated, Ji Hoon decides to embark on a journey to PyeongChang where the Olympics will be held in two years. Meanwhile, Hye Won, depressed after failing all her job interviews, decides to join her brother In Joon on his trip to PyeongChang. Hye Won and In Joon set off on a bicycle trip, but their bicycles break down along the way. They bum a ride and meet Ji Hoon there, where their adventures begin.