TVXQ and Super Junior are treated to a luxury holiday by SM Entertainment in Yogyakarta, Indonesia. However, when they return to their rooms after dinner, they find that their belongings have been taken and they've been left with a backpack each. Their company has "transported" them back in time to 2002 when they were trainees; they have limited money, analog cameras and MP3s filled with songs from 2002 and before, old mobile phones, and a guitar. To "return" to 2019, they must go around Yogyakarta with their limited funds, and go to different tourist trips, taking photos and experience Indonesia whilst becoming closer together and strengthening their bond.