''Under The Dome'' season 3 spoilers, synopsis: Chester''s
16/06/2015#0183;#32;quot;We will tell you why the dome came down and what it''s about,quot; executive producer Neal Baer told TV Line. quot;By the end of the season, you''ll know exactly why this happened the way that it happened.quot; To quench fans'' thirst for answers, CBS has released a preview of quot;Under the Domequot; season 3, where Big Jim and Julia are shown planning to help the citizens of Chester''s Mill from the dome