Valve has released another new teaser video showing off Alyx and Dog.

"Stepping into the hazard suit of Dr. Gordon Freeman, you face the immediate repercussions of your actions in City 17 and the Citadel. Rejoin Alyx Vance and her robot, Dog, to once again aid the human resistance in their desperate battle against the totalitarian alien menace of the Combine.

Episode One exposes Alyx's combat skills and knowledge of City 17. Battle side-by-side with her through Valve's first episodic game, a four-to-six hour adventure of greater density and detail than non-episodic releases."

The 29.1MB video can be downloaded from us.

I think I've had enough of these two second videos and will be looking forward to the release tomorrow. I feel like playing Half-Life 2 over again first but really don't have the time.