The cause of the problem was not 'immediately' clear. [=is was not known right away]
They live in the house 'immediately' [='directly'] behind this one.
We need to leave 'immediately'. [='at once', 'right away']
(..) but I will concede I did not see the complete picture. What are you doing? I'm calling Dr. Wells. Uh, he needs to change his voice mail immediately. BRENNAN (recorded): Hello. You have reached the voice mail... Okay, Bones, you can fast-forward that by just pressing the pound... (..)2016 TvShow: Bones Title: The Fight in the Fixer Season: 11 Episode 15