sentences:  However, in one of the show's final scenes, Jack encounters his father in a church, where he realizes that everyone in the "alternate timeline" is actually dead, in an afterlife constructed by the survivors in an unknown fashion so they could be with the people most important to them before "moving on" together.Jack finally makes amends with his father and, as the various characters seat themselves in the church pews, Christian exits through the front door, filling the room with a bright light.Whilst living, Christian is a quick tempered alcoholic.