A terrorist group attacks the White House and captures the President of the United States (played by Jamie Foxx). The unlikely guy that comes to the rescue of the President is John Cale (played by Channing Tatum) who just before the attack was turned down for a position he applied for in the Secret Service. Carol Finnerty (played by Maggie Gyllenhaal) told him he was not qualified for the job. John was trying to look good for his daughter Emily (played by Joey King) by getting a job at the White House and boasted about his interview for the job to his daughter.
Emily loves everything about the White House, it's her passion and she knows all the details about it as if she was a professional tour guide conducting tours of the White House. Because of this, John lies about the job interview. He tells his daughter he got the job. She immediately pleads for him to take her to the White House. He just can't refuse so that is how they end up in the White House, on a tour, at the exact time of the terrorist attack. The terrorists first blow up the Capital Dome. This triggers the assault on the White House.
When the terrorists hit the White House, John and his daughter are separated, because she is using the bathroom. The terrorists take as hostages, all the people on the White House tour, including John. John's daughter evades captures and while she escapes detection, her father also escapes from the terrorists and tries desperately to find a way to re-unite with his daughter and protect her from harm.
The President is whisked away to a secure room below the White House only to discover, upon reaching safety, that his head of security, Walker (played by James Wood), is part of the plot. Walker kills all the others that are supposed to protect the President. Walker demands a ransom but it is only a ploy. What he really wants is to go out in a psychotic blaze of glory by bringing world war from launching nuclear bombs on the Middle East. Walker has nothing to lose, since he knows he has a terminal illness, and he wants revenge for his son's death as part of special forces.
With everything at stake, John, the guy that was not qualified for the Secret Service job, is the only one in position to do anything about it.
Best part of story, including ending:
The best part of this movie is the unrelenting action that starts from the beginning and never let's up plus the twists and turns taken by the plot surprise us when the bad guys and their true motivations are revealed.
Best scene in story:
One of the cool scenes is when John's daughter Emily takes a video in secret, without the terrorists knowing it, and uploads it to the Internet so the whole world can see what she sees happening in the White House.
Opinion about the main character:
John really deserves the job of protecting the President and he proves his abilities, in ways that no one expects.