The episode opens with a vote on whether to execute Alan, who trapped the group underground. Ms. Clifford challenges the drawn-out vote, proposing instead to hang Alan in the fortress and collapse the exit, ensuring his permanent imprisonment. The group agrees, seeing this as fitting punishment for Alan's selfish actions. As the others evacuate to the surface, Alan and his accomplices are left behind. The guards then blow up the fortress entrance, trapping Alan underground forever. The episode ends with the group celebrating their freedom above ground, marking a decisive break from their past confinement.