After the disastrous reign of King Saul, God anoints a new king over Israel. David is not one who seems destined for kingship. He's everything that Saul is not, but "the Lord looks at the heart," and David is faithful to His God. Of course, all does not go smoothly. Saul is still alive and is not keen to hand over power to David. And that's just one of the giants David has to face. It's the ultimate underdog story.