Interesting that so many people are comparing this unfavorably to "Lost". I actually hated "Lost" well, past the third or fourth episode, anyway, when it started collapsing under its own weight and stopped making any kind of sense at all. "Alcatraz", I liked I already knew it had been canceled and wouldn't have an ending when I started streaming episodes, like with "Carnivale", but it was good enough that I knew I really wanted to see as much of it as was ever going to exist. Generally the supernatural and/or JJ Abrams isn't my cup of tea, but I thought this show was extremely well done. The cast is top-notch and the premise really grips the viewer. I'm sorry they never got a chance to wrap it up.