I’m half way through the ‘how did I miss this!?’ and ‘why are there only 43 episodes?!’ of 4400. It is about 4400 people who disappeared at different times over the past 60 years or so, to reappear suddenly in 2004 in Seattle in a blaze of light. The acting, writing, character development and philosophical and scientific explorations are all very well-done. I’m probably going to write a spoiler post when we’re finished watching so you might want to catch up!