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![](https://image.tmdb.org/t/p/w342/2yaeYNplMuLGNjBigMFsek7UZmq.jpg)
Defcon 1
Lt. Severide has his strong ideas on who the serial arsonist is, but first needs to find proof to back up his suspicions. Meanwhile, Lt. Casey adjusts to his new lifestyle in the wake of recent events and Molly's bar is failing, much to the dismay of owners Hermann, Dawson and Otis. Elsewhere, Dawson goes out on a date with Jay Halstead, one of the bar regulars, and Mouch's campaign trail starts to get on track with the aid of Isabella, an old friend of Dawson's.
Writing:
Stars:
- Michael Brandt
- Derek Haas
- Jessica D. Johnson
Stars:
![](https://image.tmdb.org/t/p/w300/7QFEi5mGdioTTvRjg6XJmngHWOa.jpg)
![](https://image.tmdb.org/t/p/w300/5XPo3DDJw9xzU48SEgllZKhi8jZ.jpg)
![](https://image.tmdb.org/t/p/w300/dIN1FV8gj8m9PBgqBfxBIUERy2w.jpg)
![](https://image.tmdb.org/t/p/w300/goinv0B7n61HEzyCFOEGocVxv9j.jpg)
Other episodes for this season
![A Problem House](https://image.tmdb.org/t/p/w300/2dN650KiAkos7A2oSMQgY2yXYP.jpg)
![Prove It](https://image.tmdb.org/t/p/w300/p5rI4Z84ibx3xdXwYOMQ8ZgUnJy.jpg)
![Defcon 1](https://image.tmdb.org/t/p/w300/cn3HhPtXuij6qk8spzzgsf0AnJs.jpg)
![A Nuisance Call](https://image.tmdb.org/t/p/w300/15voPszxK4C39Oh1o1ghc0Fsb0x.jpg)
![A Power Move](https://image.tmdb.org/t/p/w300/2rBCjVJVzBLAeb550O3EjEKnHdd.jpg)
![Joyriding](https://image.tmdb.org/t/p/w300/zq4rrgkVwGEFCQc5mxJaEN4bltt.jpg)
![No Regrets](https://image.tmdb.org/t/p/w300/i4q0ypIYLzslMDrdKjC7QWx8Cmf.jpg)
![Rhymes with Shout](https://image.tmdb.org/t/p/w300/gDEbPHpE295QMqaEDsmUES3deU3.jpg)
![You Will Hurt Him](https://image.tmdb.org/t/p/w300/Acg3uGAmLeWkpFscnjsdbbFiHTz.jpg)
![Not Like This](https://image.tmdb.org/t/p/w300/pE3NrXLeOnxGkh0G5BE4nAHgBOK.jpg)
![Shoved in My Face](https://image.tmdb.org/t/p/w300/u50OmN8DNEDpllmYvq74NRQ8020.jpg)
![Out with a Bang](https://image.tmdb.org/t/p/w300/zUYhnwMazyAhgjCK6Hj8ok7UCcq.jpg)
![Tonight's the Night](https://image.tmdb.org/t/p/w300/pVTmyUEnwTM4KyITluSYsptZlCJ.jpg)
![Virgin Skin](https://image.tmdb.org/t/p/w300/iomZjjzEgKarngl5WXNJZE65oIk.jpg)
![Keep Your Mouth Shut](https://image.tmdb.org/t/p/w300/3qRUWCI4kmgevKVzpnO9U7DyxoQ.jpg)
![A Rocket Blasting Off](https://image.tmdb.org/t/p/w300/rZqoVBS9OGdpTujIv1csrbT63e2.jpg)
![When Things Got Rough](https://image.tmdb.org/t/p/w300/AvsCAh7ooTR4Sg1uo1ikcFBoXoS.jpg)
![Until Your Feet Leave the Ground](https://image.tmdb.org/t/p/w300/uGjRTW1J1hO7t2VCkldeBAfeWcW.jpg)
![A Heavy Weight](https://image.tmdb.org/t/p/w300/tsj1f4dBPGMVXMtK9FdAEH6q85H.jpg)
![A Dark Day (I)](https://image.tmdb.org/t/p/w300/l7g2qq4zpLIclzMp5UTavcGqb4z.jpg)
![One More Shot](https://image.tmdb.org/t/p/w300/AlfQUgVZgtp2nLkWtRbHY6w0GXs.jpg)
![Real Never Waits](https://image.tmdb.org/t/p/w300/1yF6UAAcA3oNHebLzS9p3RMzd6q.jpg)