This week, Running Man plays out the Ggannes Film Festival, a spinoff of the Cannes Film Festival. Actress and singer Jun Hyo Seong, actor Kang Tae Oh, comedian Heo Kyeong Hwan, and singer Yoyomi join the cast and dress up as famous Korean movie characters for the festival. However, two very unhappy directors hidden among them threaten to crash the show. It's up to the actors along with the one national actor, also hidden among them, to save the festival.

The Ggannes Film Festival race continues from last week. It's still up to the actors to eliminate the two directors hidden among them before the directors find and defeat the one national actor. After analyzing the hints, suspicious members face trial. Will the actors succeed in helping the national actor? Or will the directors get their way?