I'm asked, I don't have to lie. But don't think of me as an idiot." Fox later discovers Bruce's real identity through Alfred Pennyworth, who calls upon Fox to Bruce's rescue after he is assaulted by Scarecrow's fear toxin. At the end of the film, Bruce, having gained majority control of Wayne Enterprises' shares, fires Earle and makes Fox the company's CEO. In The Dark Knight, with Freeman reprising his role, it's acknowledged that Fox is fully aware of Bruce's secret identity as Batman, though it is never openly stated by either of them, so that he can retain plausible deniability if an outsider puts two and two together. Fox actively participates in a support capacity as Bruce's armorer, designing a new Batsuit designed for more efficient mobility and which can withstand against dogs, though also makes Bruce vulnerable to knives and gunfire. When Wayne Enterprises negotiates a deal with Lau, an investment holdings owner who also is an accountant for the Gotham mafia, both Bruce and Fox look at the books and decide that Lau's business is illegal based on their profits. With Harvey Dent and Lt. James Gordon needing Lau alive to find where he has hidden the mob's money, Bruce makes a trip to Hong Kong and Fox accompanies him to make it look like they've only gone there to cancel the negotiations with Lau's investment company. When Batman uses Fox's cell phone sonar technology to create a computer system that can spy on the whole city to find Joker, Fox says that he will help just this once, but will resign immediately afterward. After the police arrest the Joker, Fox types his name into the system as instructed by Batman and the computer self-destructs. Fox walks away smiling, evidently having withdrawn his threat to resign. In The Dark Knight Rises, with Freeman once again reprising his role, Fox is the president of a nearly bankrupt Wayne Enterprises, with Wayne Enterprises board member Miranda Tate taking over the role of chairman and CEO. He brings the reclusive Bruce up to speed on the poor state of the company's finances, which have all but evaporated after heavy investment in an aborted fusion reactor project failed to pay off thanks to John Daggett. Fox shows Bruce around the Applied Sciences division once again, "for old time's sake," introducing him to the new airborne vehicle he has nicknamed "The Bat",