There has been tragedy and triumph, despair and hope. For the past year, the rag-tag team thrown together under the banner of The Authority – accompanied by thousands of human refugees – has been off in deepest space, hoping to solve the mystery of The Carrier and perhaps bring home a cure for their shattered Earth. Now, after facing numerous unspeakable horrors, their long odyssey draws to its shattering, epic conclusion. The survivors are heading home – but what secret are they bringing with them?