Popping view controllers and removing modals

performSelector.m

- (void) popTest {
    UINavigationController *nav = (UINavigationController*) self.view.window.rootViewController;
    UIViewController *root = [nav.viewControllers objectAtIndex:0];
    [root performSelector:@selector(returnToRoot)];
}

reset.m

-(IBAction)reset:(UIStoryboardSegue *)segue {
    //do stuff
}

returnToRoot.m

- (void)returnToRoot {
    [self dismissViewControllerAnimated:NO completion:nil];
    [self.navigationController popToRootViewControllerAnimated:YES];
}