John Trojan struggles with severe memory loss as he navigates a decaying world. Scientists have discovered a star on a steady trajectory toward the sun. Despite this revelation sealing Earth’s fate, uniting the world’s leaders to save humanity has become a challenge of its own. Now, John must find his place among forgotten friends and family, confront the emptiness left by his lost memories, and face the aftermath of a celestial threat that is reshaping humanity—awakening strange new Radiant abilities across the planet.