Since the people who have mentioned Bioshock only threw in "Would you kindly..." here's the whole burrito Schnitzel.
Atlas is Fontaine, he genetically engineered you to "bark like a cockerspaniel whenever he said, "Would you kindly..." and uses you as a sleeper agent to overthrow Andrew Ryan. He succeeds, but you learn the truth, break free and kill Fontaine, but what you do afterwards, is what you need to play the game for.