On SBS's popular entertainment program "I Like Sundays - Running Man" which aired in the evening of Sunday, December 22, 2013, the Running Man members took off to rescue Gaeri who had been kidnapped.

On this day's episode, which played out with the theme of "Nightmare of Christmas," Running Man members tried to find evidence of Gaeri's kidnapping and connect with the suspects. During the episode, Kim Jong Gook and Ha Ha met with Dynamic Duo's Choi Ja and Gae Ko, who were some of the suspects, because there was a picture of Gae Ko in a mysterious package that was delivered to Gaeri.

However, Kim Jong Gook and Ha Ha had to leave without capturing any clue for Gaeri's disappearance.