Rae Gray

Still finding their place, Alicia and Nick fall in with new crowds while Madison discovers Otto's past mimics that of her own.

News of incoming danger spreads throughout the community as Madison struggles to keep everyone together. Nick grapples with a hard truth.

A new threat reveals itself to Madison and Troy as they search for answers. Alicia must reconcile with her past decisions.

Special agent Avery Ryan and her team of FBI cyber analysts investigate a case of hacked baby monitors.

Tensions rise when Severide (Taylor Kinney) crosses paths with someone from his past.

When Burgess and Lindsay respond to a call about a stabbing, the assailant turns out to be a kidnapping victim escaping her captor; Ruzek accuses Roman of having feelings for Burgess.