Gunsmoke (1955)

S6E18 Unloaded Gun

Matt is on a mission to capture the notorious Lime brothers, Red and Joe, who are infamous for their ruthless killings across the prairie. However, his relentless pursuit catches up with him as he falls ill with a fever from weeks of sleepless nights. This unexpected setback forces Matt to head back to Dodge, leaving the dangerous brothers at large and creating dire consequences for everyone involved.