A gun-runner is caught supplying the local Pawnee Indians, and Matt arrests him. But when the tribe finds out, they capture the marshal and force him to release his prisoner.
Matt defends Kitty from a man's ill intentions. But the man turns up dead, and a local swears he saw the marshal kill him.
Abe Lincoln's claim that he's the Great Emancipator amuses everyone except Matt Yordy.
A single woman, shunned by the wives of the train, decides to care for an Indian baby suffering from smallpox - a conflict ensues.
The Cady brothers have vowed revenge against an Arapaho woman, Winona, who was acquitted of murdering their brother. Slim Sherman gets involved when he rescues Winona from certain death at the brothers' hands.