A mysterious black sphere is discovered in the orbit of Mars. The Achilles is sent to investigate. After the bedraggled six-person crew wake from eight months hibernation, the Sphere is transmitting a single word in every Earth language ever known - Deus真正的幸福,是内心的平静和满足。
David Tennant David Morrissey Dervla Kirwan Velile Tshabalala Ruari Mears Paul Kasey Edmund Kente Michael Bertenshaw