Spirit Untamed is a 2021 American computer-animated adventure film produced by DreamWorks Animation and distributed by Universal Pictures. The film was directed by Elaine Bogan and co-directed by Ennio Torresan Jr. (in their feature directorial debuts), from a screenplay written by Aury Wallington and Kristin Hahn, making this the second theatrical film release of the Spirit franchise and is both a spin-off and a stand-alone sequel of the traditionally animated Spirit: Stallion of the Cimarron (2002) and loosely based on the characters from its Netflix animated spin-off television series Spirit Riding Free, developed by Wallington.

Plot

In the early 1900s in the Wild West, Milagro Navarro-Prescott performs her trademark act in the circus until she falls from a horse during one of her performances and dies. 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. However, after Lucky lets a squirrel in their house and ruins her grandfather's campaign party, she and Cora head to the western town of Miradero where they will stay with Lucky's father Jim, whom Lucky has not really known after the incident with Milagro, for the summer. On the train over, Lucky notices a kiger mustang running with his herd and goes to the back of the train to meet him. Upon arriving in Miradero, the pair meet local young riders Pru Granger (and her father Al), and Abigail Stone (and her brother Snips).