The moving story of Trevor McKinney, a 12-year-old boy who accepts his social studies teacher’s challenge to come up with a plan to change the world. Trevor’s idea is simple: Do a good deed for three people and ask them to "pay it forward" to three others who need help. He envisions a vast movement of kindness and goodwill spreading beyond his small California town and across the world. Anyone who has ever despaired of one person’s ability to effect change will rejoice in Trevor’s courage and his determination to see the good in everyone.