Touchdown to familiar land after months in space should have been a cake walk. Instead, the Aries crew landed in a world none recognized. First, nobody answered their calls. Second, nobody met them at the space center. Third, nobody seemed to even be around.
The three-man crew learned very quickly that the Earth they left was not the Earth to which they returned. Man turned beast and beast turns to something not quite man. Their happy return became a quick and devastating disaster.
Humans are adaptable creatures and the survivors of the Aries adapted quickly, albeit not in the same way. They learned through errors and through experience, but they also learned through the kindness and information of strangers.
It didn't take long for them to discover that even in the new world, not everything was as it seemed. They would have to take a good, long, hard look at what they believed and what they wanted from their new lives in a new Earth.