Theme: Triathlon Survival (1st Half), Find Big 3 (2nd Half), Send Me (4th Anniversary Special, recording in the Caribbean)
Members: Kim Byung-man, Hyun Joo-yup, Kim Dong-hyun, Choi Woo-shik
Ep. 178–180: Jo Han-sun, Hani (EXID), Jackson (Got7)
Ep. 181–184: Ryu Dam, Kim Tae-woo, N (VIXX), Minah (Girl's Day)
Ep. 184–185 (4th Anniversary Special): Kim Byung-man, Ryu Dam, Kim Ki-bang, Go Joo-won, Lee Mi-do, Yoo Seung-ok, Kim Hee-jung
