Firehouse 51 is gearing up for one of its most intense challenges yet. Chicago Fire season 14, episode 4, titled “Mercy,” is officially set to premiere on October 22, 2025, bringing fresh chaos, emotional stakes, and dangerous rescues that will test the crew like never before.
When Does Chicago Fire Season 14 Episode 4 Air?
The latest episode of NBC’s long-running firefighter drama airs on Wednesday, October 22, 2025, at 9 p.m. ET / 8 p.m. CT on NBC.
The episode will also stream the following day, Thursday, October 23, on Peacock, where subscribers can catch up with Firehouse 51 anytime.
Below is the full release schedule for all major regions:
| Region | Release Date | Time |
|---|---|---|
| USA (ET) | October 22, 2025 | 9 p.m. |
| USA (PT) | October 22, 2025 | 6 p.m. |
| United Kingdom (BST) | October 23, 2025 | 2 a.m. |
| Central Europe (CET) | October 23, 2025 | 3 a.m. |
| Eastern Europe (EET) | October 23, 2025 | 3 a.m. |
| India (IST) | October 23, 2025 | 6:30 a.m. |
| Japan (JST) | October 23, 2025 | 10 a.m. |
| Australia (AEST) | October 23, 2025 | 11 a.m. |
| New Zealand (NZST) | October 23, 2025 | 1 p.m. |
How to Watch Chicago Fire Season 14
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NBC (U.S.) – Watch new episodes every Wednesday night.
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Peacock – Stream new episodes the next day with a subscription.
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Peacock Premium: $10.99/month (with ads)
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Peacock Premium Plus: $16.99/month (ad-free)
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Annual plans available: $109.99/year (Premium) or $169.99/year (Premium Plus)
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For international viewers, the series is available via local broadcasters or streaming services that carry NBC content, depending on your region.
What to Expect in Episode 4: “Mercy”
After the chaos of the previous episode, Chicago Fire continues its streak of emotionally charged storytelling. The official synopsis teases:
“Firehouse 51 must band together after a devastating fire catches them off guard; Vasquez continues his quest for answers; Violet and Novak face an unexpected roadblock in the new training protocol.”
Episode 3 ended with severe budget cuts forcing Engine 51 out of service and leaving several firefighters laid off — including Murphy, who was later injured in an ambulance crash caused by exhaustion. With morale shaken and workloads doubled, Violet is determined to find a solution to ease the strain, proposing that trained firefighters be redeployed across the department.
Meanwhile, Vasquez continues digging into his father’s case — a man imprisoned for allegedly planting evidence — and Stella Kidd grows closer to Isaiah, the child she’s fostering, as his mother’s health deteriorates.
Expect “Mercy” to push the team to their physical and emotional limits, with high-stakes rescues, moral dilemmas, and a few surprises that will leave fans desperate for next week’s episode.
How Many Episodes Are in Chicago Fire Season 14?
Season 14 will consist of 21 episodes, airing weekly on Wednesdays on NBC and streaming Thursdays on Peacock.
