1) The author is reluctant to participate in her family's annual walk to raise money for hunger relief but feels guilty when her younger sister decides to take part. 2) On the day of the walk, despite cold and rainy conditions, the author is inspired by the positive attitudes of others and walks the full 20 miles alongside her family. 3) Having completed the difficult walk, the author gains a new appreciation for her comfortable life and the importance of community service in helping those less fortunate.