Dick Powell's Zane Grey Theatre (1956)

S2E18 License to Kill

A small-town sheriff struggles to manage a rowdy band of cattle drivers after suffering a broken arm. When his younger sibling comes to visit, the sheriff appoints him as his deputy. However, he soon discovers that his brother's approach to justice involves lethal force for any infraction, no matter how minor. The sheriff must navigate the challenges of his injury while confronting his brother's extreme methods of enforcing the law.