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.

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.

In the semi-finals, the remaining four dancers fight for their chance at the final three spots.

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.

When a body is found in the maze of a retreat center, Jenny uncovers uncomfortable truths about the effects of therapy.

Nancy and the Drew Crew race against the clock to find a way to destroy the Aglaeca before she can destroy them. Meanwhile, Ace reaches out to Carson for a favor.

Sam calls on Kelly's undercover skills when she gets a lead on a gun-dealing dollar store. But when Kelly's cover is blown, Sam's forced to get out of her comfort zone to expose the supplier.

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.

When King Alfred of Wessex hears about the arrival of the sons of Ragnar, with an army, he knows he must take drastic action. So as the Viking army makes camp and lies in wait, Alfred and his army abandon the Royal Villa and march to meet them.

Jackie decides she needs to be Jean's relationship guru and helps her land a date with a guy from the farmers market. Meanwhile, Freddie worries that he's not interesting enough for Celia when he learns about her dating history and decides to make a change.

After a seemingly innocent young man is gunned down in the street, the team works to bring in the suspected culprit, but the case is more complex than it appears. The grief-stricken father is determined to do his own undercover work.

Aaron faces pressure from all sides when he is forced to decide which charges to bring against the officers responsible for the killing of an unarmed civilian. While Safiya pursues video evidence that could change their case, Roswell searches for a way to move the case from Staten Island to a friendlier venue.

Harry races to keep his secret safe as Asta is forced to face her own past.

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.

Donald Trump's lawyers give dismal performances at his impeachment trial, Roy Wood Jr. explores the history of Black spies, and Radha Blank discusses her film "The Forty-Year-Old Version".

Jimmy welcomes actor Dwayne Johnson, actor Daniel Kaluuya, and a musical performance by Chris Stapleton.

Stephen welcomes actress Kristen Wiig and actress Rebecca Breeds.

Woodstock protects a badminton birdie; Snoopy decides to pen a prize-winning novel; and he feels guilty when Rerun is injured while they're playing.

Vows are made and hearts broken as Kate navigates her long-strained relationship with her brother, and Tully grapples with compromise and commitment.

Luna coaxes Saci to take her to Curupira. Ciço tells Afonso about Dry Body's curse. Eric and friends try to get to Luna before she finds her target.

James welcomes actor Noah Centineo and a musical performance by Madison Cunningham.

Jimmy Carr hosts as Jon Richardson and Lucy Beaumont take on Roisin Conaty and Joe Wilkinson. Bec Hill joins Susie Dent in Dictionary Corner, with Rachel Riley.

The Barleycorn is called upon to host a pub quiz. Can Stephen redeem himself after he fumbled the jackpot question and incurred his dad's fury last time?.