When a meeting of the world's genius musicians goes awry as one of them suddenly goes missing on 'Running Man', the race is on to assemble the clues and solve the mystery of the kidnapping case!

With guests Oh Yeon Seo, Kim Ji Hoon and A Pink's Eunji, the quest is on to figure out the case - through puzzles, clues and good old-fashioned nametag ripping - and stop the crimes once and for all!

Check out the preview below.

SEE ALSO: 'Knowing Brothers' reveals teaser for next week's episode featuring Apink