Watch Chicago PD Online: Season 4 Episode 21

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Did the team manage to foil a bank robbery?

That was their plan on Chicago PD Season 4 Episode 21 when they got word that a robbery was in the process.

They came across a Robbery-Homicide detective trying to take over the crime scene, but the team was not impressed with the way she was treating them.

Meanwhile, Upton was shocked to come across Platt and quickly let her know that she was someone from her past. 

How did Platt react?

Use the video above to watch Chicago PD online to get up to speed with the latest developments. 

Paul Dailly is the Associate Editor for TV Fanatic. Follow him on Twitter.

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Chicago PD Season 4 Episode 21 Quotes

Lindsay: So it's your birthday tomorrow.
Halstead: You remembered.
Lindsay: How could I forget? Pops up in my Google calendar.

Steve: I'm saying this case is a mess. You shot an African American teenager, who from the reports I've seen, never actually fired his weapon.
Lindsay: Are you kidding me? Have you ever looked down the barrel of an automatic weapon? No? Good.