Fourteen diverse contestants gather as shocking house rules are unveiled, setting the stage for a thrilling first game of alliances and deception.

The first match delivers unexpected twists, sending seven to prison. There, a high-stakes prison match determines who will face the first elimination.

An elimination warns the inmates of what’s at stake — but can they win the next match? Meanwhile, secrets brew between the prison and living areas.

The arrival of a new inmate sparks talk about forming alliances or marking the inmate as the next target. Elsewhere, someone steps into the Devil's test.

New alliances form, yet some conceal their true intentions. As the game shifts, an unexpected elimination occurs, altering the dynamics.

A brutal prison match determines the fifth elimination. Between living areas and prison, no allies remain — only hierarchy persists.

On day four, a creative player is eliminated in the main match. A prisoner's fate hangs in the balance as the inmate loses mental stamina.

The remaining prisoners galvanize when an inmate is eliminated. One player's efforts are focused on taking down Jeong Hyun-gyu in the main match.

Amidst ongoing betrayals, emotions explode. But eliminations continue, and complex feelings begin to overwhelm the remaining players.

With one main match remaining before the finale, alliances face a true test; twists unfold, ultimately deciding the final two contestants.

As all the players gather to watch, the fate-deciding final battle begins; who will emerge as the ultimate brain and champion?