Gordon Freeman and Evan Walsh navigate the Black Mesa facility, evading the HECU soldiers led by Commander Jaegar. After a climactic confrontation, they're trapped, but the mysterious G-Man intervenes, stating Freeman's journey isn't over.

Doctor Gordon Freeman and Security Guard Evan William Walsh attempt to get to the Lambda complex to reverse the effects of the resonance cascade failure. They are pursued by the HECU Marin commander Jaegar through the substation of the nearby hydro electric dam. Fighting their was through marines the characters seemingly escape only to be lured into a trap. With no hope of survival the G-Man intervenes with his typical time stopping and tells Gordon their is more for him to do.—Ian James Duncan