Travel to collect items for camping from Seosan to Busan and should be back before sunset.

The team headed toMokpoCoastal Fery Terminal to go to BigeumdoSinan, but all ship can't sail because of high sea warning, they then headed toNamwon

The production team planned to do a relaxing trip for the members because of the hard trip since the start of season 3, but they changed it because of an ambitious worrywart member, Defconn, said to the PD that they shouldn't made an easy trip and must work harder