The first film Walker wrote and directed, THE FROZEN GROUND was finally released on Netflix USA in 2021, and in its first week, became the #1 Most Watched Movie and holds an audience score of 88% on Amazon Prime USA. In his review, Jamie Edwards at Magic FM, described it as, "At last a suspense / thriller to rival Se7en." In her review for RogerEbert.com, Sheila O'Malley gave it 3 out of 4 stars and praised Walker's direction and Nicolas Cage's performance. Joel Amos wrote in his review for MovieFanatic, "A performance by Nicolas Cage that is among the best of his career and certainly the best in at least a decade. And a break-out performance by Vanessa Hudgens. In 2022, Quentin Tarantino saw the film and called it "The best serial killer film, I've seen in years!".
