Did Intelligence find out the truth about a pair of bombings targeting members of the media?
That was revealed on Chicago PD Season 5 Episode 16 when the team raced against the clock in order to get closer to the truth.
This meant they needed to join forces with Firehouse 51 with the aim of learning more about the bombs, and how they could save the targets with little time.
Did it make for a worthy crossover?
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Paul Dailly is a staff writer for TV Fanatic. Follow him on Twitter.