The aircraft's location then suddenly switches to the skies of Xen, then finally to an emptiness similar to that encountered by the Black Mesa tram at the end of Half-Life.
As the G-Man delivers this closing monologue, the plane carries them away from Black Mesa, shortly before a nuclear blast flashes outside confirming its destruction.
Likewise, in , it is revealed that the Combine have been using the energy of captured Vortigaunts to power his prison cell in the.