Emergencies include a skating mishap at an ice show, an accident involving a self-driving car and a fulfillment warehouse robot going rogue. Meanwhile, Eddie's after-hours fight club gets out-of-control and Hen struggles in her relationship with Karen.

After Spencer and Olivia's efforts to try to get help for Layla blow up in their faces, Layla pretends that everything is fine by throwing a birthday party for Olivia and Jordan. With Spencer not in a good place after the news he receives about Corey, he is forced to have dinner with the biggest football booster, and it doesn't go well. Coop is ready to start recording the music she wants but Preach pushes her to try something that isn't her style. Meanwhile, Jordan finds himself in trouble and turns to his dad for help, leaving Billy to do what's best for his family even though Laura doesn't like it.

A medley of songs from some of the most popular boy bands and girl groups in history; the six remaining couples compete; guest judges Emma Bunton and Joey Fatone.

The Top 20 artists perform live in front of the coaches and America for their chance at a spot in the Top 13.

While moonlighting as a cab driver, Higgins finds a dead passenger in the backseat.

A hostile points battle becomes even more intense as drivers struggle to adjust to the "mile high" altitude at Colorado's Bandimere Speedway. With turbos and pro-chargers gasping for air, the season's most combative staging war has everyone scrambling.

The detectives investigate who firebombed the campaign office of a female politician.

Jefferson struggles with the effects on his family, leading to a decision with tragic consequences. Meanwhile, Anissa's identity is threatened. Lastly, Agent Odell takes an important step toward winning over Jennifer.

As the NYPD digs into the "Junkyard Killer" case, Malcolm realizes the main suspect may have had a connection to his father. As news regarding this serial killer spreads, Ainsley itches to be the first one on the case, while Jessica panics, fearing she may never be able to leave the past behind.

Dr. Shaun Murphy's unique ability to relate to a patient isolated by an immune deficiency yields an unexpected result. Meanwhile, Dr. Claire Browne, Dr. Morgan Reznick and Dr. Marcus Andrews treat a 12-year-old patient who is about to become blind, and tension builds between Dr. Neil Melendez and Dr. Audrey Lim.

Emerson's mother, General Virginia Howe, arrives in town with a life-or-death case she wants Sydney and Elijah to take. Delia helps her son deal with her father's meddling behavior in the family business.

Michael Bloomberg prepares to join the Democratic primary field, Rep. Jim Himes discusses the impeachment inquiry into President Trump, and Anna Kendrick talks about "Noelle".

Actor/comic Kevin Nealon.

Chris D'Elia, Andrew Santino and Erik Griffin discuss fashion at the People's Choice Awards and an audience's adverse reaction to Drake, and Spade negotiates with Chili's.

Actor Michael Shannon; news personality Jenna Bush Hager and activist Barbara Pierce Bush; Pete Yorn performs.

Alyssa decides it's finally time to confront the past and lay her demons to rest. Could returning to a familiar place hold the key?

After a disastrous mission, Mermista is certain there's a Horde spy in Bright Moon and vows to sleuth them out with her mystery novel experience.

James welcomes actress Kate Beckinsale, actor Josh Lucas, and comic Andy Haynes.

As Elliot's concern for Jac grows, will he ever be able to tell her his secret? Lofty is determined to be there for his new family, but will it be smooth sailing from here? Sacha is conflicted when his feelings for Essie resurface.

Philo and Brutus play a prank, but their timing couldn't be worse. Harka sends Veran a message.

The gang are taken to the evacuation centre, where they meet Rob, who is looking for Jude, who he thinks is patient zero. Soon, Jo is bitten, but she shows no zombie symptoms.