Your objective is to reach the teleporter within Nova Prospekt to rescue Eli Vance. You'll eventually reunite with Alyx Vance, and together you'll fight your way to the teleporter chamber. Here, you'll discover Dr. Judith Mossman's betrayal as she activates the teleporter and escapes with Eli Vance to the Citadel. This sets up the next major objective. You and Alyx will then use the damaged teleporter to return to Kleiner's Lab, but with unforeseen consequences.
Half-Life 2
The Teleporter & Judith Mossman's Betrayal — Half-Life 2 Walkthrough
Navigate the Teleporter and Judith Mossman's Betrayal in Half-Life 2. Rescue Eli Vance from Nova Prospekt and deal with unforeseen consequences.