EXchange: Another Beginning Episode 1

'It's been a while. Nice to meet you.' The participants are back on Jeju Island and meet again. Lee Hye Seon, Jeong Hye Im, and Kwak Min Jae from EXchange explore the Jeju sea in a submarine. Park Na Eon, Lee Ji Yeon, and Jeong Gyu Min from EXchange 2 go off-roading to a place where Gyu Min had his EX-date. Kim Kwang Tae and Cho Hwi Hyun from Exchange 3 are glad to see each other. After spending a special time, they gather at the Jeju Island house and meet each other for the first time. What kind of beginning awaits them there? (Source: Viu)