In 2026, Artemis II carries a crew around the Moon. NASA is hiding the mission’s true purpose: the Moon is no satellite, but an ancient prison holding a cosmic horror captive. In deep space, four astronauts receive fragments of memories from the Apollo era and discover that humanity is merely the 28th test subject. As the seal on the Moon’s far side begins to crack, they must choose between sacrifice and the truth. This is the ultimate test of humanity’s coming of age.