Stranded on the desolate surface of the Moon after a catastrophic crash, astronaut John Carter's fight for survival takes an extraordinary turn when he discovers a hidden alien sanctuary and forms an unlikely alliance with a being from another world. As a devastating meteor shower reveals a new, malevolent threat, John finds himself at the heart of an intergalactic war he never knew existed. He must retrieve a powerful crystalline shard—the key to a star-spanning gateway—and embrace a new purpose, a new identity, and a new mission to protect a peaceful civilization from a soulless enemy. This is the story of a man who lost everything, only to discover that his fight for survival was just the first step on a journey to become the savior of a new universe.