Through these recordings, GLaDOS realizes she was originally Caroline , Cave Johnson’s loyal assistant, whose mind was forcibly uploaded to create the AI.
Realizing Wheatley is dangerously incompetent and will accidentally destroy the entire facility, GLaDOS and Chell form an uneasy alliance to take him down. The Finale: To the Moon Portale 2
They return to the modern facility to find Wheatley has made a complete mess of things, pushing the reactor toward a core meltdown. In the final battle, Wheatley booby-traps the room, but Chell notices the roof has been torn open, revealing the night sky. Through these recordings, GLaDOS realizes she was originally
Watch these recaps to see the story of Portal 2 in action: Portal 2 In 6 Minutes YouTube · Northern Bob Portal 2 (Story Condensed) YouTube · haybe The Story of Portal 2 in 5 Minutes YouTube · Timmy Boots In the final battle, Wheatley booby-traps the room,
Portal 2 is a direct sequel that expands the lore of Aperture Science, taking place centuries after the first game. Below is the complete narrative arc of the single-player story. The Awakening and GLaDOS's Return