Running Man are told they can go anywhere on a train and are asked to write down where they'd like to go. Suddenly guards come out and force them to write down "Prison". They have to face a unique challenge per carriage on the train. If they fail, they are sent to prison.
Running Man face off against Lee Kyung-kyu's second Avengers team in a boxing ring match, sixth sense challenge, and nametag elimination round in a mall.
This week, the Running Man members are joined by Han Eun Jung, Bora, Pyo Ye Jin, Hwang Chi Yul, and Black Pink's Jisoo and Jennie. They team up with one another to play various games in order to win prizes and avoid penalties. Their goal is to get two heart cards before everyone else and avoid getting the bomb cards. Who will win prizes, and who will get the penalty?
M Agency versus R Agency. Tom Cruise, Simon Pegg and Henry Cavill join Running Man this week for a thrilling episode of cat and mouse. The Running Man cast trans-form into secret agents for R Agency. Among them, there are three spies working for M Agency. Will the R Agency agents find out who those three spies are, or will M Agency succeed in their infiltration and catch the R Agency leader?
For this week, the Running Man members are called by the staff one by one as soon as the shooting begins. They are told to pick a member to whom they will give half of their Running Money. Since having the most money puts them at an advantage, all the members start playing mind games all of a sudden. Meanwhile, Kim Roi Ha, Kwak Si Yang, and Seo Hyo Rim join them as the best villains and villainess.
This week's race is called Dangerous Invitation that will unite ghosts from the East and West. With Son Na Eun, Seo Young Hee, and Ahn Hyo Seop joining as guests, the members show up wearing different costumes and makeups of famous characters from dramas and movies to celebrate Halloween. Then, the members and guests are divided into two teams, Team Humans and Team Ghosts, and play three missions. Winning members receive a hint that will lead them to win this week's race. Stay tuned to find out the ultimate winner.
This week, the members of Running Man goes on a race called Go, Determined Gourmet. They must figure out which dish is the correct answer according to the hints they receive from completing the missions. Will the members be able to inherit the fortune from their dad?
Seok Jin and Kwang Soo are finally given the chance to get their revenge at the members. As Furious Santas, their mission is to steal the members' personal belongings. They must steal all of the items before the race ends if they want to avoid facing penalties.
Last week, the members of Running Man were given badges according to their levels. However, they become aware that some of the levels have been fabricated. Among five of the guests that have been invited today, there is a forger who fabricated the levels. The members must get to the bottom of what happened.