Rabb Da Radio 3 follows the story of Ratan Singh Wala, a village home to 22 Sandhu families descended from a common ancestor, living in rare unity and brotherhood. Their peaceful life is disrupted when a new highway project sharply raises land prices, sparking greed and conflict among relatives. As misunderstandings grow and relationships fracture, Inderjit Singh Sandhu stands firm in his values of honesty and family. Though he loses love and friendships in the turmoil, time reveals the cost of greed. Ultimately, the clan reunites, learning that wealth can grow, but broken brotherhood is hardest to restore.