On Chicago Fire Season 4 Episode 19, Casey became closely involved when a high school student ended up the victim of a gang-retribution incident.
It was a pretty intense hour of television, that was for certain.
Elsewhere, Severide lent a hand to Detective Holloway, who himself was involved in an undercover operation. He did so by keeping an eye on her nine-year-old son at the firehouse.
Meanwhile, Brett and Jimmy were called to assist a woman who took a liking to Jimmy... and Otis made a surprising discovery.
Finally, as you'll see when you watch Chicago Fire online via the video above, Herrmann's bar-running prowess was challenged. Big time.