The residents of Chester's Mill may still be trapped Under the Dome in season two, but creator Brian K. Vaughan has managed to escape.  That news is a bit surprising given that Vaughan was originally handpicked by Steven Spielberg to adapt Stephen King's novel for the show back when it was being set up for Showtime; when CBS picked it up, Neal Baer came on board as showrunner.  Vaughan's decision to exit is reported as being an amicable one, with his reasons being to spend more time with his family and to focus on his passion for graphic novels.  Under the Dome fans need not worry about continuity however, as he went through the second season's arc with Baer before departing.  (Via THR)