Chicago Fire Season 15, Episode 5 ‘Three Hundred‘ is the kind of episode that balances out celebrating the past with hinting at the future, and one that makes it very clear that there’s still life in this show, fifteen seasons in. It’s an emotional hour, which we already expected considering this is the final episode for long-time cast member Joe Miñoso, and if you’ve been watching One Chicago for a while, you might find yourself shedding a tear or two. Don’t say we didn’t warn you.
But it’s also an hour that feels true to the realities of both first responders and long-running procedurals. In a perfect world, Joe Cruz wouldn’t be leaving. He was always one of my favorites and the type of character that I appreciated having around, even when he wasn’t getting all that much screen time. But if he had to go out, I admit I enjoyed the way they chose to write out his exit.
Also quite enjoyed a few of the other things this hour sets up, particularly when it comes to Severide and the role Mouch can play. And I might have some feelings about the probies. Who knew?
MORE: What did Victor Teran tease about this season?

Here are some teases about the episode:
- Joe Cruz, I will really, really miss you. And I won’t be the only one, as this episode makes clear.
- It was apparently really simple to give the probies an interesting storyline. And not just the one we know we’re keeping, either.
- Violet and Lizzie’s friendship has been one of the biggest successes of this show, and Hanako and Jocelyn have a lot to do with how well it works.
- The funny thing about Vasquez is that we’ve now gotten to the point where I want to shake him at times, but also where I want to ask him what he’s thinking as I shake him.
- Cruz had at least two or three moments that made me very emotional this episode, but there was one in particular, near the end, that really got to me. And it was the kind of moment he couldn’t leave without getting
- A lot of nods to the history of this show, and if you catch them, the goodbye will mean more.
- I really liked Mouch in this episode. One of the best versions of serious Mouch.
- This isn’t a Stellaride-heavy episode, after the Stellaride fest of the previous week, but the show clearly establishes that the structure of this show at this point will have us getting more than crumbs even on episodes that don’t focus on them.
- Stella gets a really poignant moment that turns into a really crucial lesson.
- Funily enough, the show still manages to have a storyline that’s just borderline ridiculous and fun even while the rest of the emotional stuff and the rescues of the week are happening.
Are you excited for Chicago Fire Season 15, Episode 5 ‘Three Hundred’? Share with us in the comments below!
Chicago Fire airs Wednesdays at 9/8c on NBC.