Oliver and Taylor stumble through their love lives, making Katie miss the spontaneity and unpredictability of being young and in love. Meanwhile, Kathryn's plan to soothe Oliver's heartbreak backfires when she tracks down an old boyfriend, Dan, and he is not as she remembers. At the same time, Anna-Kat makes strides at school when Franklin is stuck at home with the chickenpox, forcing her to make a new friend.

Stakes are high when a massive car pile-up on the freeway impacts someone dear to the firehouse family. Brett and Foster encounter a harrowing call while Kidd and Severide find their relationship being tested.

A professor from Lewis’ past tips off the BAU to an alarming number of overdose deaths of patients who just completed rehab.

The financial security of the Lyon family is on the line as their LFM showcase quickly approaches. Kai’s research for an expose on Empire uncovers some dirty activity within the company and causes conflict with Jamal. Meanwhile, Hakeem and Tiana finally reach an agreement on how best to move forward with their relationship, Andre struggles with his decision to let a new love interest in and Kingsley strikes a deal with Giselle.

Dede’s husband, Jerry, comes to town to bequeath her possessions to the family. Mitch and Claire receive a little more of Dede than they really know what to do with, and Jay and Gloria feel sorry for Jerry and invite him to stay with them while he is in town.

The citizens of South Park are enjoying all the perks of being a company town when the Amazon Fulfillment Center moves in. Everything is just swell until the contradictions inherent in capitalism threaten to bring down the entire system down.

TV host Andy Cohen; John Legend talks and performs.

Bjorn, Lagertha, and Ubbe face an uncertain fate as Heahmund’s loyalty is tested. In Iceland, Floki fights to understand the will of the gods. In Kattegat, Ivar may have met his match.