This is me playing through the "sequel" to Half Life 2, Half Life 2 Episode 1. After the strange escape from the exploding Citadel, Gordon and Alyx attempt to slow the inevitable destruction of City 17 so that they and everyone else in it can get out in time only to pick up a message on the way that sends the Combine on a highest priority mission to stop them. During the escape they get stuck underground and this video ends when they reach the surface, barely escaping painful death from the zombie and Ant Lion infested depths below the Citadel.
Like my play-through of Half Life 2, sometimes the video jumps, the music skips, or Gordon suddenly changes position or weapon. These are all the result of sloppy editing, but I did my best so please ignore them.