Hard Reset's story is light, and the emphasis seems to be placed on the anti-hero you play named Fletcher. Never assume he left his drink at the bar because he wasn't thirsty: he'll be back to finish it after he takes out half a city block to destroy the enemy machines. Either way, in this demo we don't get to see much depth, mainly a very angry guy taking things out on the machines.
Actually, the story so far seems to be a bit of The Matrix and a bit of Surrogates (Bruce Willis film), but we'll see if things deepen in the full game. Fletcher works for a big corporation and does security patrols to guard against the machine threat. Actually, it's not truly clear what's going in this short demo. Are you protecting people's uploaded digital personalities? Are you protecting real people from machines gone mad? Whatever the case, you've got a gritty anti-hero on your hands, and he's no fan of the bots.