Dog (2022) Plot Summary & Ending Explained

Former Marine Jackson Briggs is determined to rejoin the military after being discharged due to a severe brain injury and ongoing seizures. With the support of his supervisor, Captain Jones, he gets a chance to redeem himself. However, this comes with a condition: he must transport a female Belgian Shepherd named Lulu to Nogales for the funeral of her handler, Riley, who tragically passed away in a car accident.

Lulu is known for her aggressive behavior and has no suitable home, meaning that after the funeral, she faces euthanasia at White Sands base. As part of his mission, Briggs receives Riley's belongings to return to his family, including Lulu’s "Love Me Book," a diary kept by soldiers. He’s also warned to avoid touching her sensitive ears. With Lulu improperly contained, their journey begins—a challenging 1500-mile trek. Instead of heading directly to the funeral, Briggs opts to embrace the trip's adventure.

Their escapades start when Briggs visits a shooting range, inadvertently leaving Lulu alone in the car. She breaks out, causing chaos in the vehicle, leading him to tranquilize her with a sausage treat. Later that evening, Briggs encounters two women, Bella and Zoe, at a bar, leaving the still groggy Lulu in the car. When Lulu wakes up and barks, a bystander mistakenly assumes she’s being abused, resulting in a rock being thrown at the car, provoking Lulu to attack.

Continuing their journey, Briggs engages in a heartfelt monologue with Lulu, recognizing that both of them are seen as liabilities to the army. When Lulu breaks free and injures herself, Briggs follows her trail to a pot farm where he meets Gus, who mistakenly believes Briggs is after his weed stash. After a tense encounter, Gus's wife, Tamara, assists in treating Lulu’s injury, surprising Briggs with Lulu's calm demeanor.

Driven by misgivings, Briggs stops at a luxury hotel under the pretense of being blind, allowing him and the dog to stay for free. However, chaos ensues when Lulu escapes and attacks a guest, which leads to a frustrating series of misunderstandings with the police. Briggs finds himself detained over suspicion but ultimately they are released after explaining Lulu's background.

Despite his family's reluctance to see him, Briggs takes a detour to visit his ex-wife Niki and their young daughter. He learns from Noah, Lulu's brother's handler, that his struggles echo those he faced with Nuke, a dog he ultimately adopted. Together with Lulu, they recover stolen belongings but face challenges when their vehicle breaks down during the storm.

As the storm pounds outside, Briggs confronts his own demons while comforting a frightened Lulu. The following morning, they embark on their final journey to the funeral. After a heartwarming ride with a stranger, they arrive just in time. Briggs allows Lulu her freedom near her former owner's shoes but is unable to part with her. Instead, he returns to her side, revealing a newfound bond.

Briggs delivers Riley’s belongings to his grieving family and later speaks to Captain Jones about Lulu's changed behavior, passionately advocating for her life. Faced with their emotional ties, Briggs ultimately frees Lulu in the prairies—yet, she refuses to leave. After a sleep cycle interrupted by a seizure, he discovers the profound connection they share; Lulu remains by his side, reassuring him during his struggles.

At White Sands base, he hand over Lulu to a young Corporal but begs for a re-evaluation of her fate. Overwhelmed by their bond, he decides against leaving Lulu behind, choosing instead to adopt her. The film concludes with a poignant scene of Briggs and Lulu overlooking the sea, where he expresses heartfelt gratitude to Lulu for saving his life, encapsulating their transformative journey together.

Throughout Dog, Briggs' relationship with Lulu begins with emotional distance, reflected in his tendency to call her "Dog" rather than her name. This detachment symbolizes his fear of forming deeper bonds, especially since Lulu is destined to be put down after attending Riley’s funeral. As the journey unfolds, Briggs gradually opens up, dropping the nicknames and allowing himself to connect with Lulu on a more genuine level. Their shared experiences mirror each other’s struggles, both of them wounded by their military pasts. Lulu’s watchful eye on her favorite show, Grey’s Anatomy, adds a touch of comfort rooted in her bond with her previous owner, Rodrigo, and signifies her need for calm amid chaos.

As the story progresses, it becomes clear that Briggs and Lulu are both mirrors of each other’s emotional scars—she was once calm and affectionate, but her trauma turned her feral, much like Briggs who struggled to adjust and form meaningful connections. By the end of the film, Briggs makes the heartfelt decision to keep Lulu, acknowledging the profound impact she’s had on his life. He even writes a poem about her, symbolizing his own journey of healing and acceptance. This final act shows that Briggs has begun to let go of his emotional barricades, embracing vulnerability, and recognizing that he can find purpose and happiness beyond the battlefield. Lulu's presence has helped Briggs confront his trauma, and by choosing to stay with her, he indicates a willingness to move forward and rebuild his life with new hope and courage. The ending signifies that healing often comes through connection, and Briggs’s decision to save Lulu marks a pivotal step in his path toward emotional recovery and a brighter future.