So, I just rewatched Batman Begins, and dude it is the exact same plot as the third movie.
The League of Shadows comes to destroy Gotham. Bruce ends up in a hellish prison connected to Ra'sh. They break out the prison and release the inmates. They engender fear in the citizenry. They use a near-sci-fi weapon of mass destruction. The leader's secret identity is revealed in a shocking twist at the end. Bats goes off to sacrifice himself to save the city, revealing to a supporting character his secret identity through a shared line of old dialogue.
Also.... is the little boy that Rachel saves from Scarecrow supposed to be Robin? 'Cause in his one scene with Bats he says you're real? The other kids don't believe me.