Like this past year's Terra Nova, Alcatraz was a show that started to get really good right near the end and was cancelled. This seems to be the case with most genre shows nowadays. Often ones with high concepts and original story lines begin to find their "groove" towards the end of the first season, however at the slightest sign that its not a heavy hitter in the ratings its cancelled. Alcatraz is far from perfect but I believe would have only gotten better during the 2nd season much like Fringe did (currently my favourite show on TV and one that has defied the seemingly impossible and lasted 5 season). Alcatraz has an interesting premise, with good writing/directing, and solid acting from a very good cast. I highly recommend.