This is the story of how we grow old -- how we give up the dreams of youth for something better -- and how many chances we have to get it right. George Bailey has been given the gift we all dream of -- the chance to live his life again. After suffering a heart attack at the age of 42, George is given the heart of a 19-year-old -- and suddenly everything changes. He is a friend to his teenage son and daughter -- and not a stern Home Secretary, monitoring their every move. And suddenly he wants to change the world -- just as soon as he shakes off his hangover. But George Bailey discovers that being young again is not all it is cracked up to be -- and what he actually wants more than anything in the universe is to have his old life back.