On the Run, Your Highness

Prince Harry is the future king of Eroda. A month before his coronation, an assassination attempt takes place in what his family thought was a safe place for him.
The king and queen decide it would be best to immediately send him away to the United States to stay safe until he becomes king.
But he can't go alone...
So they send the young knight Louis Tomlinson with him. The man is new but good. He knows his duty of taking care of the royal family, and he takes it very seriously. But he's still just a boy.
The pair meet new goofy friends that show Harry what it's like to have a life of a citizen.
But how can he sit back and relax when his kingdom is under attack?
His people are being tortured and there's nothing he can do to save them.
Or is there?