Years later, her young daughter, Fortuna "Lucky" Esperanza Navarro-Prescott has been living with her aunt Cora and grandfather James in a city on the east coast.

Upon arriving in Miradero, the pair meet local young riders Pru Granger (and her father Al), and Abigail Stone (and her brother Snips).

She enlists Pru and Abigail with their horses to embark on a journey to try and cut the wranglers off on their path by beating them to a water depot located beyond a summit called Heck Mountain.

[12][13] The film uses a style that is a mix of 3D with the look of a handpainted look from Riding Free, taking about 1300 shots, 25 of which were animated by Jellyfish, and used 2D drawings to make 3D maquettes, some of which were supplied by DreamWorks.

[16] The following day, a single titled "Fearless (Valiente Duet)", written by Doherty and performed by Isabela Merced and Eiza González, was released by Back Lot Music.

[18] A soundtrack of the film was released on May 28, 2021, and additionally, Robin Pecknold of Fleet Foxes is featured on several tracks contributing vocal harmonies along with Eiza González.

Spirit Untamed was released on DVD and Blu-ray on August 31, 2021, by Universal Pictures Home Entertainment through Studio Distribution Services LLC in the United States.

[3][4] In the United States, Spirit Untamed was released alongside The Conjuring: The Devil Made Me Do It, and was projected to gross around $5 million from 3,200 theaters in its opening weekend.

The website's critics consensus reads: "While it might be a passable diversion for younger viewers, Spirit Untamed is a middling sequel that lacks the essential energy suggested by its title.

The stunning and detailed animations saturate Lucky's world with an impressive array of colors, from the crimson apples she feeds Spirit to the pistachio and emerald-green leaves on the swaying trees".

"[28] Pete Hammond of Deadline praised the film for its female cast, stating that "After all the decades of boy-driven stories set in the wild West, it is refreshing to see the girls get their turn...And that is exactly what Spirit: Riding Free writer Aury Wallington and Kristin Hahn have in mind, along with their director Elaine Bogan and producer Karen Foster."

Additionally, Hammond praised the soundtrack and vocal performances, which he wrote were "perfectly pitched here, a step above the TV show if not quite up to the artistry of the original film.

"[30] Beatrice Loayza of The New York Times gave the film a negative review, stating that "This spinoff of Spirit: Stallion of the Cimarron is a bland, bubbly romp through the Wild West, with a heavy dose of girl power.

He also praised the film for its expansion of the original series, noting that "Spirit Untamed essentially retells, modifies, and expands the events of the show's pilot.

"[32] A video game adaptation, titled Spirit: Lucky's Big Adventure, was released on June 1, 2021, on PC, PlayStation 4, Xbox One and Nintendo Switch.

Throughout the midway point of the 2021 NASCAR Cup Series season, Houff would do numerous events including autograph signings with special Spirit Untamed merchandise being made.