Castiel is living a normal life as a kindergarten teacher at a good school. Then the new World Geography teacher comes into the picture along with his genius brother. He is hunted. And the very people who hunt him work with him. (Or the one where Cas is a retired russian intelligence and Dean and Sam are CIA agents who are hunting him. Cas is an angel) Secrets will be uncovered.

Castiel and the Winchesters get a few unexpected surprises. Gabriel might be back. Castiel/Dean in later chapters. MPREG.