Chicago Fire - Season 5 - Eps 12: An Agent of the Machine
The team is on high alert when a previous incident during a fire call leaves a dangerous man on the loose with a vendetta to target Lt. Casey and Firehouse 51, and prompts CPD to step in. Dennis Mack, a buddy firefighter of Severide's father, comes to town to shadow the squad but may have ulterior motives. Meanwhile, Brett and Antonio's relationship hits some bumps in the road when his ex-wife Laura surfaces and Casey has a present for Dawson.
About Chicago Fire

Title: Chicago Fire
First Air Date: 2012-10-10
Last Air Date: 2025-03-05
Status: Returning Series
Rating: 8.4/10 (from 2241 votes)
Language: EN
Seasons: 14
Total Episodes: 270
Network: NBC
Genres: Drama
Production Companies: Universal Television, Wolf Entertainment
Synopsis
An edge-of-your-seat view into the lives of everyday heroes committed to one of America's noblest professions. For the firefighters, rescue squad and paramedics of Chicago Firehouse 51, no occupation is more stressful or dangerous, yet so rewarding and exhilarating. These courageous men and women are among the elite who forge headfirst into danger when everyone else is running the other way and whose actions make the difference between life and death.
Cast

Taylor Kinney
Kelly Severide

David Eigenberg
Christopher Herrmann

Joe Miñoso
Joe Cruz

Christian Stolte
Randy 'Mouch' McHolland

Miranda Rae Mayo
Stella Kidd

Daniel Kyri
Darren Ritter

Hanako Greensmith
Violet Mikami

Jocelyn Hudon
Paramedic Lyla 'Lizzie' Novak

Jake Lockett
Sam Carver

Dermot Mulroney
Battalion Chief Dom Pascal