Trying to run code upon a return from a segue

Just for iOS 6:

"In the controller you wish to return to, implement a method that returns an IBAction, and that takes a single UIStoryboardSegue argument:

- (IBAction)returnActionForSegue:(UIStoryboardSegue *)returnSegue {

// do useful actions here.

}

Now, in the scene we wish to unwind, control-drag from the UI element that will trigger the return to the scene's exit icon (the green icon in the dock). In the popup menu, select the previously defined return item."

more here: http://www.freelancemadscience.com/fmslabs_blog/2012/9/24/advanced-storyboard-techniques.html

Your method calls are incomplete. Here is another post that gives some good examples of how to use the unwind method:

What are unwind segues for and how to use them