David, wheelchair-bound by muscular dystrophy, is growing progressively weaker, while his friend, Lyle, has a problem with an increasingly high energy level. David informs Lyle that their teacher is about to die and claims that God told him this. When their teacher does die, a confused and doubtful Lyle convinces David that he can teach him to run, secretly viewing this as a way to test the existence of God. When Lyle begins to twist the rules in a desperate attempt to give his friend some of his own excess energy, they come face to face with life's most transcendent and painful truths - and Lyle's question is ultimately answered, in a way he never could have imagined.