Murray McBride--a lonely 100-year-old who's outlived just about everyone he's ever loved--is looking for a reason to live. He finds it in Jason Cashman, a spirited 10-year-old boy with a terminal heart defect and a list of five things he wants to do before he dies. Murray is determined to help Jason fulfill his dreams. Together, they race against the limited time each has left, ticking off Jason's wishes one by one as Murray remembers what it's like to be young, and Jason fights for the chance to grow old. But when tragedy strikes, their worlds are turned upside-down, and an unexpected gift is the only thing that can make Jason's final wish come true.