After discovering that the surface is peaceful and habitable, a woman exposes Alan's deception, revealing he trapped everyone underground for 30 years under false claims of doomsday. The group quickly turns against Alan, demanding justice for his betrayal. Faced with overwhelming anger, Alan and an accomplice, Jane, are sentenced to death by the fortress leader. Despite Alan’s sacrifice claim, the crowd remains hostile, preparing to parade them before execution. Meanwhile, an ominous signal alerts others that the humans inside the fortress are about to emerge, promising a grim feast for waiting giants.