In the post-apocalyptic city of Chicago, the Enclave and Brotherhood of Steel have been at war with each other for years. However, a new threat rises that threatens them both and the inhabitants of the Windy City. These once enemies must now work together in order to face a new threat, and two heroes must join forces.

Vault-Tec had one Vault that was both successful and had a morally just concept. Create a way to insure the human race could survive. Well this is the story of their first official success and his time in the waste.