News TV Videos Chicago Fire preview clip – “Leaders Lead” – tonight on NBC Written by Lena Lamoray on May 8, 2013 Sneak Peek: “Leaders Lead” – Severide takes matters into his own hands to solve his legal troubles, and an unspeakable tragedy devastates the members of Firehouse 51. Related posts:'Late Night with Jimmy Fallon' clips - Kevin Hart, Olivia Munn & more'Hannibal' previews'Chicago Fire' preview