Not many would remember a popular Indian TV show from early 90s called Mungerilal Ke Haseen Sapne. It was about this office peon (an utterly unimportant person in social order) with an active imagination. Typically the episodes would deal with his daydreaming scenarios. Army of One is a story about a similar man. Only thing is that it's about a real life person (Gary Faulkner) who did went on with his quest to capture Osama Bin Laden, all by himself. Now, its something of a debate whether all the incidents in his narrative are true but one thing is certain that he did end up traveling to Pakistan, on multiple occasions, with his Katana blade, without much trouble. That's classic privilege because most Asians would be stopped at airports if they were even carrying a pen knife.
Well, for Gary the orders apparently came from God himself (Played by Russel Brand in the movie). Well if God is in-fact like Brand, then we've no hope. On the other hand, it could be a smart move if he's just channeling through comedians now-a-days. Probably works for the better. Reports say that Faulkner got dangerously close to finding Osama despite his bumbling, idiosyncratic demeanor. The CIA even considers recruiting him. Well, as far as expendable foot soldiers go, Faulkner might actually be a fine candidate. Although, Nicholas Cage went a little over the top in his portrayal of Faulkner, I think that any man embarking on such an insane quest is in-fact hysterical. So Cage's performance makes sense.
If you put aside the main plot for a moment, you'll realize that the movie does have have a heart. Gary's relationship with a single parent Marci is beautiful and touching. Marci's adopted daughter has Cerebral Palsy and to her, Gary is the most interesting person in the world. While he might be the Don Quixote swinging his sword (Katana in this case) at the windmills but when he comes home, he finds the real purpose of his quest. Its a funny movie and if you like watching Nicholas Cage going nuts, its full of it. It's gratifying to see Hollywood recovering from the grimness surrounding 9/11 and daring to bring some levity around the tragedy. Kind of reminds me about the Bollywood movie Tere Bin Laden and its sequel. Watch Army of One when you've nothing else to do.