Joo Hyun Young, Tsuki, and Kwon Eun Bi are here to race with the cast for as many R coins in a free-for-all, grab-and-dash race! However, there's a catch that the members don't learn about until it's too late. Ironically, less is more, and the people with the most left will face the penalty. But hope is not all lost. They get the chance to discard them by winning missions. Let the Come Empty, Return Empty race begin.

In this episode, Eun Bi makes a bold return to the show despite being banned by the members. She joins the rest of the cast as they head toward Ganghwa Island. The members playfully rib Eun Bi for her audacity in coming back, especially after her history of tricking Jong Kook. Surprisingly, the more they tease her, the more shameless she becomes. Eventually, she even considers filling an empty spot on the show. With Eun Bi seeming to fit in better than some of the original members, the quizzes carry on.

Kwon Eun Bi and Jonathan Yiombi join as guests in today's The Perfect Code Race. Each Running Man member starts with seed money they get from a random QR code they scan at the start of the race. Eun Bi and Jonathan will have different tasks to earn their money. With that seed money, the members and the guests will scan QR codes in missions to make it grow. In the end, they race with QR codes on their backs with questions they must answer to eliminate the other to earn even more money to determine who faces the penalty.