Following an unexpected turn in the case, Lisa and the team accept help from a new unit.
After realizing how little time Adam has left at William Penn, a sentimental Beverly decides to get more involved at the school, to Adam and Principal Ball’s dismay. In order to prevent her from intervening with Senior Skip Day, Adam and Principal Ball team up to put Beverly through an intense Quaker Warden training, which ends up backfiring.
Dr. Choi helps a patient with chronic pain find a solution. Dr. Halstead considers a new path. Dr. Charles and Anna bond over a scary situation.
Katie goes overboard in her efforts to help J.D. become a father. Meanwhile, after a brush with the law, Greg worries Taylor may be a political liability.
After spending seven years away from Riverdale, Archie returns to find the town is now under Hiram Lodge's grip and on the verge of becoming a ghost town. When Toni catches him up on what's been going on, Archie reaches out to the rest of the gang to return home.
When a body is found in the maze of a retreat center, Jenny uncovers uncomfortable truths about the effects of therapy.
Gallo makes a split-second decision during a dangerous fire rescue leaving Casey steaming that his direct orders were not obeyed. Kidd feels a strain in her relationship with Severide. Brett and Mackey find themselves searching for answers following a series of suspicious calls.
Halstead and Ruzek try to infiltrate a crime ring and encounter a complicated situation. The team recruits an unlikely ally to help solve a murder.
Sam makes a case for the $15 minimum wage, skewers the racist foundations of America's Greek life system, and compares the treatment of peaceful protesters to that of violent insurrectionists.
In the semi-finals, four dancers fight for their chance at the final three spots. One will be unmasked and the remaining three will advance to the finale and their chance at the diamond mask trophy. Host of FOX's LEGO MASTERS Will Arnett joins panelists Ken Jeong, Paula Abdul, Brian Austin Green, and Ashley Tisdale along with host Craig Robinson.
Phil revisits Sarah and Ian, whose two-bed semi in Brixworth in Northamptonshire was bursting at the seams. Five years on, Phil finds out if they followed through on their decision.
CBP investigates a trend of cocaine concealed in coffee bags, and cracks down on a series of wildlife trafficking crimes.
Nervous about their reaction, Rodney breaks the news of his engagement to his parents.
Sofia seeks guidance. Ricky questions his path. Pete meets a new ally. JJ makes a discovery.
Former celebrity bad boy chef Easton West returns to his family home in the Adelaide Hills to start a restaurant with his niece, repair his family, and work out his place in a modern world.
The once-grand Cecil Hotel provides a nightmarish backdrop for the disappearance of Elisa Lam. Her final footage in an elevator triggers a viral hunt.
Web sleuths dissect Elisa's social media posts. A grisly discovery changes everything at the hotel already known as the Night Stalker's onetime lair.
The mystery deepens: Did a crime occur? The obsessed descend on the Cecil hoping to solve the case and tumble down the rabbit hole of conspiracy.