The Mole originally aired on ABC back in 2000 with Anderson Cooper as its host. The reboot season, which aired in 2022 on Netflix, has a pretty similar premise to the initial iteration.
One member of the group is secretly a Mole, responsible for interfering with team challenges done to add money to a prize pool. Eliminations occur at the end of every episode after the contestants take a quiz to determine who the Mole is. The person with the least correct answers is then sent home.