Season 4

Incheon International Airport, Culture Tank

Daegu (Keimyung University Dongsan Medical Center, Keimyung University Daemyeong Campus, Suseong Pond)

The cast split into 2 teams in the day, namely:

Cr-Reem-Lee (Lee So-ra, Hareem, Crush)

Sunshine Band (Henry, Lee Su-hyun, Jukjae, Jung Seung-hwan)

Daegu (Suchang Youth Mansion, Daegu Stadium)

Crush temporarily leaves the cast after this episode

Gangwon-do (Sokcho Deungdae Beach, Sokcho H Cruise)

Lee Hi joins the cast

Gangwon-do (Gangneung Movie Village, Pyeongchang-gun Mountain Cinema)

Lee So-ra leaves the cast after this episode

Gyeongsangbuk-do (Pohang Steel Mill, Andong Woryeonggyo Bridge)

Sohyang joins the cast, Lee Hi leaves the cast after this episode

Busan (Cheongsapo Port, F1963, Songdo Beach)

Special performers: Lee Nau (Purple Rain), Hong Jin-ho (Hoppipolla)

Jeonju, Jeollabuk-do (Jeonbuk National University, Jeonju Nambu Market Youth Mall, Gyeonggijeon)

Crush returns to the cast

Special performer: Lee Nau (Purple Rain), Park Da-som (Dancer)

Seoul (Mokdong Ice Rink, Seoul Botanic Park)

Seoul (Camping in the City by Walkerhill, Seoul Marina Club & Yacht)

Lee Hi rejoins the cast

Special performer: Hong So-jin