A mass shooting at an athletic club is investigated; and Atwater, who's dealing with his new assignment, helps locate the suspected shooters. Platt and Halstead, meanwhile, check in with Lindsay to see how she's managing.
| Creator | Dick Wolf |
|---|---|
| Actor | Jason Beghe, Marina Squerciati, Patrick John Flueger |
| Country | United States of America |
| Production | Universal Television |
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