S3·E563 I Miss You, Friend #3
Aired March 31, 2018
Synopsis
The members of Infinite Challenge continue to carry out the missions given by their friends. Se Hyeong visits Na Rae’s grandparents in Muan. Haha gets a medical checkup and gives a lecture to middle school students. Myeong Soo and Jun Ha go on a hike at Mount Seorak. Infinite Challenge finishes their program while remembering the 13 years they spent together.