HAL JORDAN of Earth is recruited to join an intergalactic law enforcement squadron known as the GREEN LANTERNS. He is summoned to their headquarters on the planet Oa, which lies at the center of the universe. Unknown to HAL, or any of his new alien partners, is that a traitor lurks within their league. Betrayal and destruction strike Oa without warning. The GREEN LANTERNS mysteriously lose their powers just as they face their greatest enemy. HAL must quickly learn to become a super hero before he becomes the last.