Taylor Kinney, Miranda Rae Mayo preview milestone 300th episode of 'Chicago Fire'

Taylor Kinney and Miranda Rae Mayo discuss the milestone 300th episode of "Chicago Fire," which airs at 9 p.m. Wednesday, Nov. 4, on NBC.
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Taylor Kinney and Miranda Rae Mayo discuss the milestone 300th episode of "Chicago Fire," which airs at 9 p.m. Wednesday, Nov. 4, on NBC.