Watch Chicago PD Online: Season 5 Episode 18

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Did Upton's old undercover identity cause a world of trouble for the team?

That was revealed on Chicago PD Season 5 Episode 18 when Upton thought the old persona would be integral to taking down a meth ring.

That's My Partner - Chicago PD Season 5 Episode 18

Meanwhile, Woods continued to pursue some results in his plan to take over everything. 

This sent Voight on a mission to get some help for Olinsky. 

Was it too late to save either of them?

Use the video above to watch Chicago PD online right here via TV Fanatic. 

Get caught up with all the latest developments right now. 

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

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Chicago PD Season 5 Episode 18 Quotes

Ruzek: Hey honey.
Antiono: Those were blanks, right?
Atwater: Hell yeah!

You guys are lucky I work here.