The sermon on "The Prodigal Sons and Their Dad" by Chris Daukas, based on Luke 15:11-32, explores the familiar parable of the prodigal son to illustrate God's grace and forgiveness. It highlights the journeys of both sons—one who leaves and squanders his inheritance and another who stays but harbors resentment—emphasizing the father's unconditional love and readiness to forgive as reflective of God's love for sinners. The sermon encourages self-reflection on personal repentance and the embrace of God's grace, urging listeners to recognize the value of relationship over material possessions or moral superiority.