Brett and Dawson go undercover at Voight's request, and Boden and Severide provide critical intel for P.D. as they race to stop a serial bomber. The crossover starts on Chicago P.D. S05E016 Profiles (I).
While Jessica deals with a rival PI and a paranoid would-be client, Trish digs up a medical file that could unlock the mystery of Jessica's powers.
Jessica sets out to find Dr. Kozlov and makes a startling discovery. Trish recruits Malcolm for backup as she visits a figure from her past.
Backed into a corner, Jessica's forced to share her intel on the killer. A groggy Trish tries to pull herself together before an important meeting.
Jessica gate-crashes an exclusive country club on the hunt for the killer, and Trish's new addiction begins to spiral out of control.
Flashbacks shed new light on the aftermath of the family's car accident and reveal a painful turning point in Jessica's adult life.
As Jessica and Dorothy wait anxiously for updates on Trish, a call from Costa brings alarming news. Jeri hatches a plan to get her revenge.
Maggie's relationship with Clive starts to progress; she invites him over for a game night to meet Meredith and Amelia; Meredith and Jo meet with the owner of the patent to the polymer they need for their project, who is a friend of the family.
With Tom’s life under threat in prison, Hammond and Cole demand that kingpin Neckbone call off his dogs. All the while, the Ravens must hide the deadly truth about Sleep, both from Neckbone and the Feds. Hammond wields leverage over Agent Byrd, who is pulled ever tighter into the Ravens’ grip.
Tom’s revenge against Winters risks an all-out gang war. With a fresh body on his doorstep, Neckbone gives Hammond a deadly ultimatum. Father and son vie for control of the Ravens, creating a deep gang rift. Hammond and Cole take action to replenish the pension fund, but their plans backfire.
Leonard jumps through hoops to help secure the perfect wedding venue for Sheldon and Amy. Also, Bernadette and Howard have a hard time deciding who should stay at home with the kids and who should go back to work.
When Cyrus and David embark on a trip to Lisbon for the digital piracy summit, their plane is hacked, leaving their friends and colleagues on the ground little time to save them.
Waking up in unfamiliar surroundings, Jessica once again finds herself torn between two worlds and facing an impossible choice.
Sheldon makes friends with an upperclassman who introduces him to a new field of science. Also, Mary and George disagree on how to handle Sheldon's blossoming social life.
Jeri finagles a deal for her new client in exchange for Karl's location. Trish forges ahead with her own investigation. A prison guard crosses a line.
Don Wildman investigates the high seas drama behind the invention of one of the country's favorite treats, a plot unrolled by Egypt's most iconic queen and the world's most dangerous balloon race.
As her visions intensify, Jessica visits an abandoned clinic, where she stumbles on a new lead. Jeri faces an ultimatum after her secret gets out.