Guest panelist Joel McHale returns to help figure out who is behind the mask.
Harvey laces up for a rematch against an old foe. Louis struggles to hold the reins of the firm.
Ubbe is forced into hand-to-hand combat. Floki reaches new depths and is met by a shocking sight. Bjorn sets off for Scandinavia with an old rival.
Marcus, dealing with guilt of killing Rory, has a party at Shabnam's and all the school is invited.
When the firehouse is called to a motorcycle crash, Casey and Severide sense that the details don't add up and work to determine exactly what transpired. A rift develops between Mouch and Otis. Brett, Foster and Kidd work to secretly fix a dent in the ambulance bumper they believe they unknowingly caused.
Dr. Halstead rushes to rescue Dr. Manning after she is involved in a Medevac helicopter crash. The personal drama between Dr. Rhodes and Dr. Bekker boils over. Dr. Charles and Dr. Choi work to help a patient come to terms with their addiction. April helps Elsa deal with the loss of her first patient.
Brian takes a friend out for ice cream; Sam is one week away from retirement.
Ten years after Popcorn Sutton's death, his widow reveals a clue that could lead Mark and Digger to a hidden stash. Mike must gin up his brandy game to pay off his debt to Mark and Digger. Donnie and Teresa build a secret still in a Kentucky cave.
Jimmy challenges Gretchen to tackle some of the responsibilities that come with being an adult.
While chasing a heroin supplier, CPD crosses paths with a convicted criminal recently released on a technicality. Halstead's history with the man threatens the team's ability to put him back in prison.
Beverly decides their street needs another stop sign and pleads her case to the city comptroller. Barry panics when he realizes he's neglected his college applications, but the situation only gets worse once Murray is involved. Meanwhile, Erica struggles with her career choice.
Teenagers find a woman's corpse while attending a party on the outskirts of the city; detectives quickly determine that the victim was strangled with her own shoelace, but they struggle to identify her.
Nev and NFL star Rashad Jennings help Deven find his mysterious online love, James; James won't videochat yet he invites Deven to fly across the country to meet him; hopeful for love but prepared for a trap, Deven needs answers.
International All Stars create outerwear from underwear by transforming corsets into runway looks; Rebecca Minkoff and Olivia Culpo guest judge.
In 1985, Will Sanders questions why the Red Cross may still be distributing tainted blood when safe heat-treated product is available. Margaret Sanders battles the prejudice surrounding AIDS. Lawrence Hartley and Paul Kirpatrick, both infected hemophiliacs, lead the charge for victims, while waiting on HIV test results for their wives. Peter Landry spirals out of control to Ben and Alice's dismay.
Scientists and amateurs conduct experiments and post their exploits online. Each episode counts down 20 popular Internet videos and explains the science behind them.
Naofumi has obtained a whole load of abilities and skills, and his teamwork with Raphtalia is reaching perfection, too. To prepare for the incoming Wave, he upgrades their equipment and heads to the dragon hourglass to find out exactly when it will arrive. But there, he runs into Motoyasu and the other heroes once again.
The story of two women whose souls switch bodies, giving them chance to live out their dreams and gain new experiences.