Following the subway tunnel collapse, Ruzek and Kidd treat injured passengers and track down the missing offender; Archer and Frost perform a life-saving amputation; Lenox feels the weight of the CPD's hopes as she fights to save one of their own.
Notes
Episode Specific Crossovers note
Crossover event with Chicago Fire (Part I) and Chicago P.D. (Part III)
Guest Cast
Cast Appearances
Episode Discussion
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This is one of the best crossover events. I was on the edge of my seat. Great show as always!