Gunsmoke (1955)

S14E24 The Good Samaritans

Matt is on his way to deliver a signed confession to a judge that will lead to a man's execution. The man has placed a bounty on the confession, attracting two bounty hunters who attempt to shoot Matt for it. In the midst of this chaos, Matt finds refuge with a community of escaped slaves traveling West, all while being relentlessly pursued by the hunters seeking the lucrative reward.