Season 1, Episode 13 Circles

First Aired: June 4, 2002

Bogus 911 calls lure cops into ambushes, making unlikely allies of Det. Mackey and Capt. Aceveda as Asst. Chief Gilroy (John Diehl) tries to play them against each other in an effort to save his own job.

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John Diehl Asst. Chief Gilroy

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  • Premiered: March 12, 2002
  • Rating: TV-MA
  • User Rating:4.62 out of 5 (461 ratings)
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  • Premise: A corrupt and brutal L.A. detective runs an elite squad by his own rules in a neighborhood ravaged by drugs and gangs. Unusually gritty and graphically violent, but seldom less than riveting, 'The Shield' gets its biggest jolt from the breakout performance… (more)

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