After the divorce of his parents, Nicky Flynn and his mom move into a one bedroom apartment. He has started a new school in a different city. One day his mom surprises him with a retired guide dog named Reggie. Reggie has these strange behaviors that Nicky can't quite figure out and mom is threatening to return him. As he walks Reggie aroudn the neighborhood, he starts to piece together part of his dog's past. But Nicky is determined to find Reggie's old owner. Learning about Reggie's roots helps Nicky confront his own past disappointments and understand the importance of building new relationships in his live that center on responsibility, trust and honesty.