it had great shows, a story line of old and new inter-tangling often surprising us, but it failed (sadly) to pull off the wow factor to get it back another season.
they were just getting to the meat of the story with Alcatraz. the main problem, as i see it, is that people would rather watch mindless reality crap than any show that makes them think or pay attention.
do you realize that shows like MASH and Star Trek would never have a chance these days?
i had a black, liberal lawyer, tell me that people tend to hang with like people. this was in response to my challenging him on an exclusively black public employee union he represented. it's not just race. smart people don't hang out with dumb people. physically fit people don't hang out with couch potatoes. probably more examples...

Falling Skies is as much a morality play as entertainment. that is both it's strength and weakness. if shallow watchers figure out the under-story, they will probably move on....as they did with Jericho, Kings, Terra Nova, etc.....