The main event is the takeover of the White House by the bad guys. Then John Cale's fight against them. Another event is the president being held hostage.
First, John Cale arrives at the White House with his daughter. Then comes the sudden attack by the paramilitary group. Cale starts his journey of resistance. He has to find the president who is in danger. There are also events where he discovers the traitors within the White House staff. In the end, they manage to defeat the attackers and save the day.
In the 'White House Down' story, initially we have John Cale going to the White House for his daughter's interview. This is followed by the violent takeover of the White House. As the story progresses, Cale begins his solo mission to rescue the president. There are intense gunfights and chases within the White House corridors. He also has to figure out the identity and motives of the attackers. Along the way, he forms an alliance with the president. And finally, they work together to take back the White House from the hands of the attackers.