With Half-Life 2: Episode One set for release on Steam today at 6pm UK time, Valve's sent out a fourth in its series of teaser trailers, again featuring the lovely Alyx Vance - this time accompanied by her mechanical pal Dog.
Alyx, as you'll know if you've read our review of the game, published this morning, plays a key role in the first episode - and accompanies Gordon Freeman for quite a significant chunk of the game.
Who knows how much Dog's in it though eh? Well, Kristan probably does, but he's asleep or on a plane or something, so we shan't ask him just at the mo'.
Anyway. Half-Life 2: Episode One. 6pm today. You can watch the previous teaser trailers elsewhere on the site.