Rae Gray

Severide realises he shares a similar past with the lieutenant who has been helping out at the firehouse; Dawson shares a secret with Shay.

As Bull prepares for fatherhood, his work at TAC suffers without his top attorney Benny, who quit in reaction to Bull's romantic reconnection to Isabella; the team must mount a defence for a young bartender on trial for involuntary manslaughter.

Special Agent Avery and her team of cyber analysts investigate a case involving hacked baby monitors.

When Lindsay and Burgess respond to reports of a stabbing, the suspect turns out to be a kidnap victim attempting to escape her captor; Ruzek claims Roman has feelings for Burgess.

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

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