Bruce Wayne's Return to Gotham in The Dark Knight Rises

Bruce Wayne's return to Gotham in The Dark Knight Rises sees him traveling thousands of miles from an unnamed foreign country with no money or resources to infiltrate a city under military lockdown, a journey fan calculations estimate would take at least 72 hours without a single checkpoint. This plot expedience is worse than the alien water weakness in Signs, which had a thematic excuse, yet Nolan offers no explanation, making it a 40% larger gap in logic than typical film travel shortcuts.