Vince Gilligan's new show, "Pluribus," opens with an unconventional apocalypse. A benevolent alien hive mind descends on Earth, commandeering the bodies of all but a handful of people who appear to be immune, including a curmudgeonly writer named Carol Sturka. Though the world that the "joined" are building seems ideal-no more crime, efficient resource distribution, an end to discrimination-it doesn't leave much room for Carol's messy humanity. Is it worth it?