The Ark - Season 1

A hundred years in the future, a vast spacecraft known as Ark One is shuttling a complement of would-be colonists away from a devastated Earth to a new home, Proxima Centauri B. The ship suffers a catastrophic event that kills almost all of the technical crew and all of the ship's senior officers. The survivors must work to reorganize themselves to maintain the ship and stay on course to reach their destination.