Passing data to the view controller that UINavigationController points to

So heres my question. I am a silent stackoverflow skimmer and Im using xcode 4.5 storyboards for an application which starts with a view controller which asks for the username and password. My application checks data via a backend server and then if the login is correct it performs a segue which points to the uinavigationcontroller which forwards the screen to the main menu.... The uinavigationcontroller hasnt been tampered with and pushes the mainmenu automatically. ``` Login_screen -> UINavigationController -> Main_Menu ``` My question is how do i pass the `NSString` username from the login screen to the main menu screen. I understand how to pass data from one screen to the next when the segue is pointing directly to it via the `prepareforsegue` method as well as `performsegue`. But in this case the `login_screen` segue points to the `uinaviationcontroller` which points to the `main_menu controller` My assumption is that i will need to make a custom class which inherits `UINavigationController` and implement certain methods but since `uinavigationcontroller` isnt seen i dont think `viewdidload` or `viewwillappear` are the right methods. Any help will be appreciated I am a new user so i am not allowed to post images but i will fix that as soon as possible