Halstead and Ruzek try to infiltrate a crime ring and encounter a complicated situation. The team recruits an unlikely ally to help solve a murder.
Shea and LeBlanc steal an important hard drive and enlist Ben, Gina and C.M. to help decrypt it, as NEXT creates chaos to stunt their progress. C.M.’s past resurfaces as…
The team responds to a suspicious call from a neighboring firehouse; and welcomes a new firefighter, though her addition has repercussions. Casey moves forward in his run for alderman.
