In 2072, earth is a desolate wasteland governed by a new world order that sends six young scientists to colonize Arianrhod, a potentially habitable planet, before all life on earth is lost. When one of their team disappears, Zeta, the chemist, believes their commander, Captain Reynard is responsible and takes him prisoner until they can return to earth.
But as they prepare for departure they encounter the alien species that captured their teammate, and find themselves in the presence of the Lost Cosmonauts of the Soviet Space Program: a space exploration mystery that has persisted for over a century. Will the team be able to return to earth in time to save the remaining population? Or will they be stranded for eternity with the three immortals who won the space race of the 1950s?