The Devil's Plan

Twelve contestants compete in both collaborative and competitive strategy games in order to win a cash prize.

The collaborative Prize Match determines whether a sum of money—₩50,000,000 or ₩100,000,000—is added to the final pot, which can total up to ₩500,000,000.

Combining three different types of pieces forms an octahedron-like shape from which the clue "NEXT YEAR" can be read.

If the players completed all ten rounds, then a certain amount of won was added to the prize pot.

For the second match, players were required to create specific personal rules only applying to themselves for a board game following certain criteria.

There are four offices scattered throughout, and if a player lands on one, they can gain an escape prison card, roll again, or change the group rule, which applies to everyone.

The tenth person to cross the finish line has to return one piece, eleventh three, and twelfth five.

In the end, the majority team's strategy proved most effective, and the final placements were determined by luck.

For the second prize match, players were tasked to observe a hospital scene, of which they would answer questions about.

Players needed to answer all ten questions correct to win the prize money.

The first player (Lee Si-Won) chose to pass, believing she would still have an opportunity to answer the following questions.

The second player (Seo Dong-joo) answered all ten questions correctly, and the prize match ended in success.

For the third prize match, the group of players is given a tower of wooden letter blocks and a category.

In the fourth main match, players seek to fill a 5x5 grid with a pattern of animal tiles that suit their personal winning condition.

Players are then given a limited set of chips to bid during auctions that allow them to place tiles on the grid.

The group has a limited number of erroneous buzzes allowed before the prize match ends in failure.

[2][3] The program was produced by Jung Jong-yeon, who has worked in the survival reality show genre before, such as on The Genius.

Runner-up ORBIT, who lacked competitiveness, played with an unusual strategy by collaborating to save players from elimination.