In this heartfelt adventure comedy, we follow a former military man named Briggs, who finds himself at a low point in his life after having come back from several complicated missions. His only connection to the world is a dog named Lulu, who, aside from being a service dog, has an indomitable spirit and an attitude that borders on rebellious. Briggs learns that he has been assigned to take Lulu to the funeral ceremony of his deceased army buddy, a last wish he must fulfill if he wants to regain his dignity.