 | #146 - Betrayer Club Arrest Operation 2013-05-19 13.5% Kim Sang-kyung Uhm Jung-hwa betrayal betrayers detective poster ripnametag teams traitorsclub | 689 | 96 | 13.93% |
 | #149 - The Legendary Nine Tailed Fox 2013-06-09 12.6% Kim Soo-mi Kim Sook Kwon Ri-se (Ladies' Code) Park So-hyun Song Eun-yi couplerace fiercegirls idol piggyback ripnametag themepark | 674 | 74 | 10.98% |
 | #150 - The Avengers 2013-06-16 11.1% Choo Sung-hoon Hwang Chan-sung (2PM) Jung Doo-hong Kim Dong-hyun Ok Taec-yeon (2PM) acejihyo athleteguests bestofgary bestofseokjin betrayal fddongwan idols mall meepmeep mondaycouple mustwatch paintball powers ripnametag roleplay singing superpowers | 779 | 274 | 35.17% |
 | #151 - King of the Killers Race 2013-06-23 12.1% Han Hyo-joo Jung Woo-sung Lee Jun-ho (2PM) bells camera finding idol missions mustwatch quiz ranking ripnametag survivalrace vote | 754 | 184 | 24.40% |
 | #152 - Early Vacation Race 2013-06-30 13.4% Han Hyo-joo Jung Woo-sung Lee Jun-ho (2PM) acejihyo blobjump funnyguests idol mondaycouple ripnametag teams teamwork water watermelon wrestling | 733 | 154 | 21.01% |
 | #153 - Return of The Captain 2013-07-07 13.9% Koo Ja-cheol Park Ji-sung Sulli (f(x)) hideandseek idol mondaycouple ripnametag soccer targets volleyball yooneunhyeteasing Two teams are formed and compete against each other in a soccer volleyball match. Afterwards a kicking target match is held where they have the ability to kick a soccerball at nametags for each person where there is a big and small nametag. Depending on the one they hit, the person must wear a nametag of the size. A nametag elimination match is held after. | 699 | 141 | 20.17% |
 | #155 - Destiny's Pairs 2013-07-21 13.2% Bae Suzy (miss A) armwrestle couples fddongwan hideandseek horror idol idols items mirror mustwatch ripnametag roleplay scary school shoethrowinggame teams tossing At an ordinary high school, high school members compete in shoe tossing and nametag elimination matches. Afterwards they must find their destined partner, stand in front of the Mirror of Mystery and ask if they are the destined couple. But a horrible truth is revealed. | 843 | 399 | 47.33% |
 | #156 - Alien Invasion 2013-07-28 12.8% CL (2NE1) Minzy (2NE1) Park Bom (2NE1) Sandara Park (2NE1) Taeyang (Big Bang) aliens bestofseokjin code crossword dancing gossaum idol idols isubs mannequin park pedometer pool push ripnametag safe songguess spartace squeeze teams towel ufo water waterbottles yooneunhyeteasing Aliens are sent to Earth (Planet R21) in 3 teams to gather exactly 21 litres of water. | 690 | 129 | 18.70% |
 | #160 - Ranking Organization 2013-08-25 12.2% Andy Lee (Shinhwa) Eric Mun (Shinhwa) Jun Jin (Shinhwa) Lee Min-woo (Shinhwa) Shin Hye-sung (Shinhwa) acupressure badjihyo ball boat camera cheating coins dirtyplay eggs elevator fddongwan food gangsterjihyo idol idols kwangmong maposiblings meepmeep mondaycouple mud pants poorkwangsoo ranking ripnametag scream slap tabletennis Running Man members undergo various challenges in order to establish a rank order which brings various benefits to the top-ranking members, and gold coins are given according to rank. The challenges lead them to an island where they meet pirates who rob them of their gold coins. | 754 | 220 | 29.18% |
 | #161 - Pirates of the Caribbean 2013-09-01 11.1% Andy Lee (Shinhwa) Eric Mun (Shinhwa) Jun Jin (Shinhwa) Lee Min-woo (Shinhwa) Shin Hye-sung (Shinhwa) cheaterkwangsoo cheatingguests coins competitiveguests dirtyplay gold goodguests handslap highenergy idol idols ripnametag rmteam roleplay runningmanvs sand teamwork water wrestling | 694 | 100 | 14.41% |
 | #167 - The Legend of the Troublemakers 2013-10-13 11.5% Chun Jung-myung Kim Min-jung badjihyo bags boxing gangsterjihyo kwangja mustwatch police ripnametag school spy traitorsclub | 694 | 172 | 24.78% |
 | #168 - The Wolf and the Lamb 2013-10-20 12.4% IU Park Myeong-su acejihyo badjihyo boxing gangsterjihyo gary gold goldbars goldjihyo kwangmong mondaycouple ofcourse ripnametag seohyunjin suzy swimmingpool In this episode, musicians IU and Park Myung Soo join the members and have a Wolf and Sheep Race. They get to choose to be either a wolf or a sheep, and they should make a guess about the ratio of wolves to sheep. The final winner who gets it right will win the gold. | 725 | 211 | 29.10% |
 | #169 - Find the Key of Freedom 2013-10-27 11.4% Joo Sang-wook Yang Dong-geun bellnametag bells butterfly chickencatching key keys kwangsooannoyingjongkook ripnametag roleplay unluckykwangsoo | 658 | 109 | 16.57% |
 | #170 - The Wizard of Oz 2013-11-03 11.7% Kim Yoo-jung T.O.P (Big Bang) Yoon Je-moon idol levelup mustwatch poem ripnametag roleplay | 654 | 63 | 9.63% |
 | #171 - Ryu Hyunjin's Choice 2013-11-10 13.7% Baekhyun (EXO) Chen (EXO) D.O. (EXO) Hyun-jin Ryu Kai (EXO) Kris Lay (EXO) Luhan Oh Se-hun (EXO) Suho (EXO) Tao Xiumin (EXO) base baseball dodgeball exo goodfeeling idol idols kwangja loveline ripnametag spy watergun | 713 | 140 | 19.64% |