Saving the World (Is Totally a Date) (слэш)

Tony discovers Stane's betrayal while he's still being held captive. When he escapes, he sets out to ruin Stane as completely and ruthlessly as he can, playing up his PTSD and quitting his job to destroy Stane quietly from the outside. He also picks up a teaching job-all Pepper's fault-and oh, right, becomes a supervillain. Okay, that one was Tony's fault, but it was totally an accident.
In the meantime, a certain Capsicle is defrosted a year early, and is assigned the task of capturing the notorious Iron Man. It's not going particularly well, if the embarrassingly high number of times he's been kidnapped in the past six months is any indication. When SHIELD decides to help him "adjust" by getting him a teaching job, Steve is skeptical; but then there's Tony, and Steve finds he doesn't mind the 21st century so much after all.