9-1-1 season 8, episode 15, “Lab Rats,” will air on Thursday April 17th, 2025 at 8 p.m. E.T. on ABC. Every episode of 9-1-1 can be streamed the next day on Hulu. So, fans can stream the episode on Friday April 18th, 2025 on Hulu. Like the latest episode of The Rookie, 9-1-1’s next outing is likely going to feature humor and character growth, and, of course, the main characters are going to be put in danger. 9-1-1 season 8, episode 15, “Lab Rats” is part two of a “Contagion” story arc that began in season 8, episode 14, “Sick Day,” which airs on Thursday, April 10th, 2025. The official description for season 8, episode 14 explained: If you’re here, you’re probably dying to know how to watch 9-1-1 Season 8 Episode 15, titled “Lab Rats.” Well, you’re in the right place. Let’s break down everything from where to watch it, what to expect, who’s in the cast, and some spicy fan theories floating around online.
“The 118 is called to a research lab that has been set on fire and becomes a biohazard.” Just like the police officers on Chicago P.D. are put in a life-or-death situation in every episode, Bobby Nash and his team are never far from danger on 9-1-1, which is what makes it such a fascinating and entertaining series. Adding a biohazard storyline to 9-1-1 season 8 is a great idea since it ups the stakes and, once again, proves that this group of first responders has no idea what’s coming for them every time they show up for work. While the stress of this career can be intense, the characters rarely miss a beat, and it’s fun watching them solve mysteries, help people, and put the pieces of trickier cases together.
So far on 9-1-1 season 8, Bobby, Athena Grant, Chimney (Kenneth Choi), and the other well-written characters have faced a bee-nado, had to stop a plane from crashing and land it on a highway, and a woman keeping a tiger in her apartment. Fans watch the popular Ryan Murphy series for these out-there moments, but also for the impressive character development. As the 118 team saves lives and helps people get out of dangerous situations, they’re dealing with problems in their own lives.
One of the biggest themes in 9-1-1 season 8 has been the ups and downs of family life. For example, a serial killer abducts Chimney’s wife Maddie Han, played by I Know What You Did Love Summer star Jennifer Love Hewitt, in 9-1-1 season 8, episode 10. Eddie Diaz (Ryan Guzman) has also struggled with his son Christopher’s (Gavin McHugh) decision to live with his grandparents. While 9-1-1 season 8, episodes 14 and 15 will feature plenty of action as the team saves themselves and others from a biohazard, their personal problems will likely take center stage, too.
If you’ve stuck around for eight seasons, you know that 9-1-1 never disappoints—especially when it gets into dark, complex, action-packed storylines. Episode 15 “Lab Rats” is shaping up to be one of those unforgettable hours of TV. Whether you’re in it for the explosions, the drama, the romance, or just for Athena being a badass—make sure you catch it live or stream it ASAP. Trust me, Twitter and Reddit will be spoiling everything the second it airs.
