Nine contestants and one Mole. The nine contestants must complete a series of challenges. Each successful challenge earns money for the prize pot, while failed challenges can result in losing money, depending on the task. The tenth participant is the Mole, a secret saboteur whose goal is to undermine as many challenges as possible without being discovered. Meanwhile, the other contestants try to identify who the Mole is. Every two days, the contestants take a quiz with 20 questions about the Mole’s identity and actions. The player who knows the least about the Mole is eliminated and sent home. In the final episode, three players remain: the loser, the winner, and the Mole. The winner takes home all the money collected throughout the game, while the Mole earns nothing.