WATCH: Jon Hamm Tells The Daily Show's Jon Stewart: 'Mad Men Runs A Tighter Ship Than The CIA'

Tonight, Actor JonHamm sits down with Jon Stewart to discuss the latest season of MadMen and the secrecy surrounding unreleased plot details.

Don'tmiss The Daily Show with Jon Stewart, weekdays at 11pm, onComedy Central Extra (Sky 128, Virgin Media 185)