http://www.youtube.com/watch?v=Yu1TZVX72Aw
Pryor and Wilder catch up to the train at the station in Kansas City. They're about to buy tickets to board, when they see Wilder's face on the front page of every newspaper in the newsstand, saying that he's wanted for murder. They also spot detectives at the gate, clutching his photo.
That's enough set-up. Click the link, watch the clip.