A travelling potion salesman and his daughter come into the boys' protection after they become the only witnesses to a lynching. But the company is soon found by the lynch mob, and they have to start to run if they're to survive. They try to find refuge at a nearby sheriff office, but when the opposing side make the witnesses a phony offer of buying their silence, it's up to Heyes and the Kid to talk them out of it. They will have to run again. But they can't run forever, and the mob catches up with them. It's time to take a stand. Can they withstand the attacks until Heyes comes back with reinforcements? (thetvdb.com)