Guests: Eun-seo (Cosmic Girls), Jin Goo, Kim Ji-won /// Location: Wolmi Theme Park (Wolmimunhwa-ro, Jung-gu, Incheon) /// Red Sun Mission: Rank higher than the "Red Sun" to avoid the penalty. || The Running Man members are joined by Jin Goo and Kim Ji Won from the drama “Descendants of the Sun”, as well as Eunseo from the girl group Cosmic Girls. The members have six hours to complete various missions as they are ranked according to the Red Sun who is hidden amongst the members. Who will be the final winner, the Red Sun or the Running Man members? (Source: Viu)