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:'Constantine' preview and digital exclusives'Grimm' to support OHSU Doernbecher Children’s Hospital with the establishment of the Grimmster Endo...Ike Barinholtz guests stars on 'Brooklyn Nine-Nine' tonight