Liv and Clive investigate the murder of Miss Teen Seattle beauty pageant contestant, Laurie-Beth Spano, who went into anaphylactic shock onstage in 1999 and ended up in a coma. At the time, police arrested rival contender Velma Charlet for spiking Laurie-Beth's makeup and she was given a four-year sentence. In present day, Laurie-Beth has passed away and Clive has arrested Velma, for her murder. Velma claims to be innocent and Liv consumes Laurie-Beth's brain in hopes of tracking down the murderer.

Maddie and Ben contend with how to help Ryn knowing that in order to help Elaine get better, they will need to continue the procedures on Ryn. Meanwhile, when one of the group gets sirened, there is more drive than ever to get to the bottom of how the siren song really works-further piquing the interest of the military in how Ryn can be of use to them.

Jack's breakthrough fuel formula goes missing from his office, and Jack suspects it was stolen by an enemy spy. As he seeks out Ernest's help to deal with the situation, Susan seeks out the help of the Magus as she attempts to mollify their conservative, upper crust neighbors. When Virgil learns that Patty has also joined the Agape, he turns the screws on Ernest, forcing the broken zealot to choose between loyalty to his beliefs or facing a life behind bars.

After a reviled restaurateur's food truck explodes, killing one of his employees, Charlie and Rex find themselves with a few too many suspects. A flirtation has Charlie torn between a possible new love and Rex's reaction.

The contestants compete in another elimination challenge, in which they must replicate the dish du jour in just 60 minutes or risk being sent packing. Gordon's demonstration is for tarte tartin - a perfect French dessert accompanied with a silky Crème Anglaise sauce. One contestant's journey comes to an end.

When Matt helps Grandpa Mort efficiently book a family trip to the Bahamas, the family is super impressed, so Greg reserves a cabana at the pool to outdo Matt. Tim saves the life of a fellow hotel guest. Matt and Colleen take an excursion to a private island. John learns some astonishing news about his father.

Ryn goes back to the ocean to get help for Ben and Maddie's conditions but discovers that continuing to go back may get harder than she realized the longer she's on land. But when they learn that there may be a special place in Ryn's homeland that could help them, Ben, Maddie and Ryn must all venture under the sea together to find the cure. Meanwhile, Helen and Ted connect over their shared family histories.

Things begin to take an interesting turn between Murphy and Dean. Murphy figures out what happened to her friend.

When Tim and Heather realize that being grandparents is very far off in the future, they decide to have another baby. Joan gets frustrated when she keeps getting tasked with watching the grandkids. Jen and Greg decide to look for a new house. Matt gets a job offer in Germany, which is problematic for Colleen and Lucas.

Prince Royce and singer-internet sensation Lele Pons heat things up on the stage as they compete for the coveted championship belt.

Martha drinks too much sherry and ruins the pot roast.

While Javier and Boaz deal with a personal problem, Teresa gets involved in a deadly turf war.

The survivalists get serious about hunting before the wildlife starts to disappear for the winter; One participant has a chance to make history by taking down big game, while another is set back by a nasty puncture wound.

When modern-day pirates hijack a yacht and steal a laptop containing information that could take down the governor, Cat Chambers jumps into action and finds much more than she expected.

Tech billionaire Odin Reichenbach presents Sherlock and Joan with an extraordinary offer to help him with a program that can predict future crimes. Sherlock and Joan assist Bell when he tries to prevent a future crime of his own, as he races to locate a fellow NYPD officer planning a sniper shooting.

Toxic masculinity issues lead to a major beef between Clint and Dondre. Tovah wonders if she should ever hook up with Clint after seeing some major red flags with his temper, while Meagan questions her faith.

It's a battle for the ages as Serayah ("Empire") takes on Rotimi ("Power").

Trevor Noah and the team recap the biggest moments from the second Democratic presidential primary debate with former Gov. Howard Dean.

Singer Nicki Minaj; comic Phoebe Robinson; Julia Michaels performs.

Stephen welcomes former Gov. Chris Christie and theSkimm founders Carly Zakin and Danielle Weisberg.

Martha meets the Stranger and learns his true identity. Claudia tries to prevent Egon's death in 1987. Hannah travels to 1954 to see Ulrich.

To get his class comfortable with being in the spotlight, Gabe persuades them to perform in the school's talent show. The catch? He must perform, too.

Sara Pascoe joins Adam, Josh and Alex for more live satirical comedy as they dissect the week's news.

The best moments from the series, featuring Will Smith, Madonna, Chris Hemsworth, Tom Hanks, Taylor Swift, Anne Hathaway, Charlize Theron, Seth Rogen, Taron Egerton and Sir Ian McKellen.