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Dawson tries to help Antonio with an investigation and ends up putting herself in danger and Severide pays a visit to someone from his past on Chicago Fire.
Dawson shares her secret with Shay and Severide knows a visiting lieutenant from his past on Chicago Fire.
Severide reaches out to his father while Chief Boden contacts the police when a teenage arsonist ignites a warehouse fire that turns deadly on Chicago Fire.
Severide is faced with some difficult decisions when he finally comes clean to Chief Boden about his injury on Chicago Fire.
On Chicago Fire, Cruz turns to Casey as she tries to deal with the aftermath of Flaco's death and Shay recovers from a head injury.
On Chicago Fire, after fighting a kitchen fire in an upscale townhome, the firefighters are accused of stealing the residents jewelry.
Severide is tempted by a woman he once saved from a car crash while Vargas is unable to work after he's injured on Chicago Fire.
On Chicago Fire, Peter doubts his future when he comes across a young victim's body at the site of an accident while Severide makes his injury worse when he helps a heart attack victim.
When the firehouse is exposed to a meth lab over the holiday, Severide does his best to delay his drug test and a deep-fried turkey fire gets out of control on Chicago Fire.
Dawson gets assistance from a girl she saved while Casey makes a life threatening move while fighting an apartment building fire on Chicago Fire.