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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. Written by NBC
All Episodes - S05
EPS01
Severide and Stella are on the lookout for her unstable ex.
EPS02
Members of 51 end up in a dangerous situation while responding to an auto accident and Stella must make a serious decision about her ex.
EPS03
Casey gets help from Susan Weller for an urgent personal matter; Severide is given an opportunity to travel with Travis Brenner; Stella saves a street kid from a tunnel fire.
EPS04
As per his duties as Alderman Casey visits a warehouse and while there, there's an accident wherein chemicals get spilled all over the place and a toxic gas covers the place and Casey and some people take refuge in an office but the gas, is leaking in and when there's an electric spark, it ignites the gas. Casey tries to find a way out. Dawson goes to a report of a woman having some kind of coronary. She wants to bring her to the hospital but an advocate stops them. Later they go there again and this time Dawson takes her over the advocate's objections. Written by rcs0411@yahoo.com
EPS05
Casey and Severide disagree on a potential arson case when the squad fails to save a woman from her burning house.
EPS06
While Gabby and Sylvie go on a call, Gabby who is driving hits a man. Later the man's son files a suit. Casey and Severide continue to butt heads over the fire at Darrin Whitney's that killed his wife. Boden brings his step-son to the firehouse so that he could find out if he wants to be a fireman and he's invited to a thing in New York and he's hesitant to go. Herrman has a chance to be promoted but when he goes to the Chief, he's told to admit that he made a mistake when he chose to go against regulations and saved someone. Written by rcs0411@yahoo.com
EPS07
When they go on a call, Matt tries to save a boy. But later the boy dies. Gabby and Antonio's parents are celebrating their wedding anniversary and Sylvie is dreading going. But at the party their father makes a shocking announcement. Cruz notices something about Boden's step-son and tells Kelly who tells Boden who then goes to his ex-wife. Written by rcs0411@yahoo.com
EPS08
Casey and Dawson are informed that they can adopt Louie if they want to. Casey notices a man following them. Severide decides to make some changes in his life. And Jeff Clarke offers him a proposition. Otis learns that Molly's is reaching a milestone and implores Hermann to celebrate it in a grand manner. They make all sorts of preparations but Hermann discovers a secret about Molly's that would ruin it. Written by rcs0411@yahoo.com
EPS09
After being approached by a man claiming to be Louie's father, Casey and Dawson explore their options. The team finds a discarded ping pong table and being it to the station hoping it could be relaxing but instead it becomes a source of disruption. Kelly agrees to be a bone marrow donor but it has an effect on him that leads him to drink and because of it, he finds himself being sought out by the police. Written by rcs0411@yahoo.com
EPS10
Louie's father throws a wrench into Casey and Dawson's family plans. Severide agrees to a bone marrow donation but a work accident throws everything into flux. Casey and Dawson try to find harmony at home. Meanwhile, Otis and Mouch decide to film a PSA encouraging people to join the Chicago Fire Department but hit a creative wall in the process. Written by NBC
EPS11
Casey and Dawson are reeling from Louie's departure. Casey takes it out on everyone at the station. When Dawson goes on a call about a girl who's on a school trip who collapses. When She examines her, Dawson tells the girl she's in labor. She gives birth and is brought to the hospital. When her father learns what happened he tears into and Dawson tells him to back off. Someone later tells her, she was hasty to react the way she did. And Kelly goes to see Anna. Written by rcs0411@yahoo.com
EPS12
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. Written by NBC
EPS13
When truck and squad are summoned to the scene of a dangerous accident, Chief Boden makes a split-second decision that overrides Chief Anderson, the incident commander whose house was the first to respond to the call. Feeling his authority was undercut and his reputation damaged, Anderson uses his power to make things miserable for Boden and all of House 51 feels the repercussions. Meanwhile, Severide contemplates a major life-changing decision, Herrmann does a good deed and Brett looks to make some personal changes to herself. Written by NBC
EPS14
After exercising his disdain and authority over Chief Boden, Chief Anderson reassigns members of 51 to various houses around town, citing the need for improvement. The ramifications are felt by the crew, who are left to make the best of their respective situations in their new surroundings. Boden fights to repair the situation, but it just might be out of his control. Elsewhere, Severide toils over an important decision. Written by NBC
EPS15
Truck and squad are called to aid in a massive all-city response when an old, ill-equipped factory-turned live/work space quickly turns into a firestorm, trapping countless unsuspecting victims. The dire situation quickly turns personal when it is discovered that one of Chicago PD's own has a family member at the scene. With the rescued victims in need of serious medical attention, the doctors and nurses of Chicago Med are tested as the major influx of patients are brought through their doors. Meanwhile, in the aftermath, the building owner steps forward to cooperate with the ongoing investigation, but the situation takes a sudden and unexpected turn. Written by NBC
EPS16
Firehouse 51 is taken over by local gangsters.
EPS17
When similar car accidents uncover the fact that someone may be targeting innocent people, a determined Dawson takes matters into her own hands to help push things along, meanwhile Casey tends to his Alderman's duties.
EPS18
Casey discovers a new crack house on the block that is harboring a female junkie and goes to extreme measures to remedy the situation. Dawson and Brett get assigned a new trainee for the shift and the newbie gets the two in trouble when he surprises them during a harrowing call. Meanwhile, Severide gets an unexpected visit from his father, Benny, and Herrmann deals with family issues when his son Lee Henry gets into trouble at school. Written by NBC
EPS19
Casey is reunited with an old colleague when the squad's rig breaks down in the field.
EPS20
EPS21
Cruz finds himself in a bad spot when an off-duty incident begins to unravel, prompting Mouch to step in and offer help in hopes of avoiding serious consequences from the CFD. Casey goes head to head with a big politician to get his measure for first responders passed. Lt. Severide makes life difficult for newest team member Jason Kannell and Dawson gets an unexpected visit from her father. Written by NBC
EPS22
A dangerous warehouse fire puts truck and squad at risk. Tensions rise for Dawson and Casey as Dawson's father overstates his welcome at their home.