Sites: Jeju Island, Leonardo de Vinci museum /// Guests: singers BoA and Jung Jae-hyun /// Mission: Episode starts out on a beach on Jeju Island. The teams are Red (Jae-suk, Gary, BoA), Yellow (Jong-kook, Haha, Jae-hyung), and Blue (Ji-hyo, Suk-jin, Kwang-soo). Mission: Crack the Running Main Code. First step is to find the Running Man Clue Files in the green tea fields. Only the ones with the RM sticker have clues. There's a piano on the hill which they need to play, following the found clues. Once each team plays the correct song, they can leave for the Leonardo de Vinci museum in which there are more hidden clues. Kwan-soo actually deduces one clue correctly while everyone else struggles with it. The next step is to search a town for more clues. There are people with name tags roaming around. It's discovered that behind a few name tags are letters. At the next location, name tag war ensues, searching for letters behind tags. Not everyone has letters behind their name tag, and since no one knows who has them, even fellow team members become targets. Alliances are made and broken. Two gold coins are needed to unlock the pedestal.