Most of the movies I've seen with Denzel are pretty good but this one was a huge disappointment. Ignoring the lack of story line...we are expected to believe some type of nuclear war from 30 years ago wiped out everything, but there's these 4 vehicles that still have gas. From where? And where does the electricity come from for the trickle charge? And why don't they just go back and get that book - I mean it is only a single tank of gas from Alcatraz back to where they left it. Wouldn't that be better than spending the next few months or years trying to recall every word? Just awefull on every level. Do NOT go see it.