Chicago Fire season 6, episode 18 synopsis and promo: When They See Us Coming

Chicago Fire’s Casey and Severide cross paths with the FBI this week. Here’s the official Chicago Fire season 6, episode 18 synopsis and teaser.

This week’s Chicago Fire features another undercover operation involving members of Firehouse 51, according to NBC‘s official description of Thursday’s episode.

Thursday’s episode is called “When They See Us Coming” and involves Casey and Severide (Jesse Spencer and Taylor Kinney) working with the FBI on their undercover case, just a few weeks after Dawson and Brett (Monica Raymund and Kara Killmer) went undercover for the Intelligence Unit in the crossover. How will Dawson handle the situation when the tables are turned? She’s usually cool under pressure, but some nerves would be natural.

And speaking of pieces of furniture, is Severide going to have a discussion with his mother about how she slept with his father, in Severide’s own bedroom?! If we were him, we’d scrap all of the furniture in there pronto. But Kelly is going to have to find time in the middle of the FBI gig to deal with this, especially since his mom is now living in his apartment. This sounds like a mission for Stella (Miranda Rae Mayo)! She can make sense of this, right? Please? Because somebody has to before our brains melt any more.

Here’s how NBC officially describes the episode:

"When the FBI takes over Firehouse 51 for an undercover mission, Casey and Severide volunteer to assist with the investigation. Kidd attempts to help Severide come to terms with recent developments he’s been managing."

And here’s the “When They See Us Coming” promo that’s airing in advance of the episode:

Next: Here's where Chicago Fire left off last week

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