John-Caleb Bradberton wasn't the only surprise Sierra Petrovita discovered in the Nuka World Vault. A genetically engineered woman preserved in a vat of Quantum will awaken after two centuries, and will use her powers and skill to become the Commonwealth's first superhero: Nuka-Girl.

The Reapers are here. Sol is under seige, the Alliance's fleets are in tatters and wreckage litters the skies, as ground units are trapped with little-to-no hope of fight or flight. Within hours, they're in total retreat, hoping against hope for a super-weapon of some kind. However, what's left of the 4th Fleet discovers something new, that might just turn the tide of the war.

Chell has been freed from the confines of Aperture, only to find that the world outside isn't much better. With the help of some familiar faces, she will join the fight to take back Earth from the Combine.

GLaDOS finds Cave Johnson stored in the cryogenic freezing wing. She revives him, and they hit it off. Cave/GLaDOS, mention of Cave/Caroline in later chapters.

To find and destroy the Borealis, maybe Gordon and Alyx need someone who knows the ups and downs of Aperture... And the Combine might just have the same idea. In a world she doesn't understand, does this make Chell the Combine's #1 target?

Modest yet ambitious and very interested in science, young Caroline manages to net her dream job at Aperture Science as the founder's personal assistant. As time passes, her dream becomes a nightmare... My first story.