A new BioShock Infinite gameplay trailer has hit Xbox Live.
The 10-minute clip offers a first glimpse of how Irrational Games' new title will actually play.
The trailer follows hero Booker DeWitt as he searches the near-deserted streets of floating city Columbia for a woman called Elizabeth.
A few 'vigors' – plasmid-like potions that afford DeWitt superhuman abilities – are shown off, including ones similar to BioShock's telekinesis and electrobolt powers. Another allows DeWitt to summon a murder of crows to set about the enemy.
You'll also get your first glimpse of crazed demagogue Saltonstall – one of the game's central antagonists. A hulking cyborg known as Alpha puts in a terrifying appearance too.
We'll stop spoiling it for you. Check it out now – it looks ruddy marvelous.
See our gallery for a selection of brand new screens from the game.
BioShock Infinite arrives on PC, PlayStation 3 and Xbox 360 in 2012. Eurogamer's Oli Welsh spoke to creator Ken Levine about his latest vision back in August.