TV: Chicago Fire – Season 4 Returns {Promo}

Hi Everyone Chicago Fire returns tonight for the 2nd half of Season 4 "The Beating Heart" is part one of a crossover with Chicago Med and Chicago P.D. where a woman pulled from a burning building is discovered to have been overdosed with chemotherepy SEASON 4 - EPISODE 10 "The Beating Heart" ♥ MID SEASON FINALE  …