While still inside the Citadel, Alyx goes delving through the Combine's computer to uncover more information on their plans. The unstable Citadel CoreĪlyx and Gordon go back into the Citadel to stabilize the core and after several fire fights with the remaining Combine soldiers are successful in their cause. After regaining consciousness outside the Citadel, Gordon reunites with Alyx and Dog and, after talking to Drs Isaac Kleiner and Eli Vance, must re-enter the Citadel and slow down the explosion of the central core which would be catastrophic. Things don't go the G-Man's way after Vortigaunts appear to save Alyx and then take Gordon out of stasis. After the explosion of the reactor in the Citadel, Gordon Freeman is once again put into stasis by G-Man. Story Alyx frozen in timeĮpisode 1 begins immediately after the events of Half-Life 2. Miraculously plucked from the massive explosion of the Combine Dark Energy Reactor by Vortigaunt allies, Gordon and Alyx Vance are tasked with temporarily stabilizing the Combine Citadel's unstable energy core before it detonates and escaping from City 17 before The Citadel explodes. Players once again fill the shoes of Gordon Freeman, and the action picks up not long after the finale of Half-Life 2. Half-Life 2: Episode One is the first episodic installment of Valve's Half-Life franchise, and the second release in the Half-Life 2 saga.
