Burgess connects to Roman, her former partner and ex-boyfriend, as he deals with a tough, personal situation.

Burgess and her former partner and ex-boyfriend reunite as he returns to town to locate his missing sister.

Roman returns to Chicago to track down his missing sister during the One Chicago crossover. Will he find a happy ending?

Intelligence responds to a call that involves tainted drugs on their street and former cop Sean Roman.

Sean Roman (guest star Brian Geraghty) looks distraught as Burgess, his former partner and ex-girlfriend, tries to help him.

Intelligence works diligently to figure out who is behind the tainted drugs laced with fentanyl in Chicago.

Burgess and her former partner and ex-boyfriend reunite as he returns to town to handle a serious matter that loops in Chicago Fire and PD.

Part 2 of the Chicago Fire/ Chicago PD crossover finds Intelligence looking for the drug dealer responsible for several deaths.

In a special Chicago Fire/Chicago PD episode, Brian Geraghty returns as Sean Roman, but there isn't much to celebrate.