The guys' game of catch goes awry when their throwing disc is lodged in a large tree.

A street artist, who is covertly plastering his art on a billboard, falls and lands directly into his own glue - and into human remains. So the team must not only figure out the identity of the remains, but must also find a strategic way to remove the part of the corpse that is still glued to the street artist. Meanwhile, Booth tries his hand at a comedy club's "open mic" night in order to seek out potential suspects and Angela's love of art leads her to become attracted to the street artist.

Marshall takes on his old friend/new nemesis Brad in the biggest case of his career. Meanwhile, the gang reminisces about their own run-ins with the law, leading to a debate over who was the biggest delinquent as a teenager.

For the final challenge, RuPaul sends her All Stars on a whirlwind junket that culminates with a stand-up routine at L.A'.s famous Comedy Store.

When Adrianna opens at the Hollywood Bowl for a headlining artist, Dixon decides to buy her a celebration gift. Suspecting he might propose, Silver convinces Ade to come clean about her affair with Taylor. Annie confronts Riley about standing her up for wrongly suspecting that Annie is uncomfortable with his disability. Naomi encourages Max to hire an executive to replace Alec, but she’s uncomfortable when the perfect candidate-on-paper turns out to be a gorgeous girl, Bryce Albright. Liam receives a threatening letter that suggests the anonymous source knows the truth about Vanessa’s disappearance, and he’s relived when off-duty L.A.P.D. officer, Ashley Howard, becomes his bodyguard.

Shawn Johnson & Derek Hough, Melissa Rycroft & Tony Dovolani and Kelly Monaco & Val Chmerkovskiy take to the stage for the Finals! Two dances each. The Repeat Dance and The Freestyle.

The Top 8 vocalists perform.

Rigby must do a pull-up in order to pass a physical.

The guys stumble upon Woody the woodcarvers 80 acre property; the guys get first dibs on an aviation museum's once-in-a-lifetime sale and their guide turns out to be an American hero.

Serena and Dan realize that they need to make amends with the people they have wronged. Blair has one last chance to prove to her mother her worth as a fashion designer and with Serena's help, comes up with a plan to make her line the "it" look for Sage and her friends. Chuck is close to getting the evidence he needs against his father, until one of his closest allies reveals his plan to Bart.

Max and Caroline figure out a surprising fundraising solution when a potential storefront for Max's Homemade Cupcake becomes available for the girls to rent as the two go to great lengths to raise enough money to see their dream come true.

In Paris, Tony does as the French do. He sips coffee at Le Pure Café, sits down at Le Dome for an enormous shellfish tower, discovers the lost art of bread baking and indulges in a guilty pleasure: a duck press.

In an attempt to form a coalition of mob factions, Constantine enlists Celeste LaPree, his old girlfriend and former call girl-turned-madam, now married to a hypochondriac mafia boss who runs Chicago's Northside. Meanwhile, Franco has a shocking revelation for Grace, forcing her to make some pivotal decisions about love and loyalty.

When Mike gets nervous after Molly doesn't get pregnant following weeks of trying, he turns to Carl and Samuel for advice.

Kim had been talking to Matt for over 10 years when she contacted Nev for help to meet him. She is in a relationship with a man named Scott, who knows about Matt. Kim opens up to Nev that the love of her life Steven committed suicide and that Matt helped her through the grief.

McGarrett plays cat and mouse with a smart and seductive therapist he believes murdered her patient. Meanwhile, Catherine must hunt down one of Doris's old targets who is now seeking revenge.

The team must keep a student population safe after an anomaly brings a Lycaenops to their university campus.

Items appraised include a barbeque grill with a motorized rotisserie shaped like a pig from the 1950s or 60s; an authentic English Grenadier Guard's uniform from the reign of George VI (1936-1952) that was purchased by the seller, a costume shop owner, when he bought out another costume shop 30 years earlier; a rare, 1970s transparent bowling ball that houses a rose within it, only 100 of which were produced, much like the one used by Ernie McCracken (Bill Murray) in the 1996 feature film comedy Kingpin, which was purchased in an antique shop; and a guitar whose body is made from a tortoise shell that Rick needs to date in order to see if he can legally purchase it.

In the gang's quest to rescue Danny, the time has come for Miles and Monroe to meet face to face. Meanwhile, on the verge of reuniting with her brother, Charlie is conflicted by a shocking discovery and Rachel tests Monroe's patience.

Items appraised include an ancient Yasutsugu katana, or samurai sword, circa 1600, brought in by the same man who sold the shop a Grammy Award in "Bumpy Ride"; a World War II-era Western Electric Beachmaster announcement amplifier, used by the military to direct beach landings, which was found abandoned in a building in the California desert 25 years earlier; and an early 1900s Oscar Onken Company DeLuxe necktie press.

David Nasaw

Kate Walsh, Billy Connolly, Wild Belle

Jake Tapper

Jim Parsons, Maggie Elizabeth Jones, Delta Rae

Lily Tomlin, Matthew Gray Gubler

Imelda ends up taking a shine to Jac and enjoys the fact that she helped cast doubt over Hanssen's suitability for the job. Jac wants to impress her, but ends up getting drawn into a complicated teen pregnancy case. It's assessment day for new CT1 doctor Lilah. Serena hopes that today will be her last shift on AAU, and is even more happy after she learns that she's worked with Imelda before.

Celia and Alan continue their unconventional romance by buying an expensive convertible car instead of an engagement ring. But they do throw a party, where they reveal the reason they never got together 60 years earlier - and who it was that stood in their way. Michael Dobson tries to blackmail Caroline over her relationship with Kate, and although she easily gets rid of him, it's clear she is uneasy about anyone finding out the truth. Meanwhile, Gillian is worried Raff will discover how his father died from Robbie - so decides to make a confession.

The end of the academic year is coming close and with it is the need for the housemates to make some huge decisions. Josiehas to decide what to do with her life. Kingsley finds himself moving in to a one-bedroom flat with Heather, before some old feelings re-emerge just when he least expects them. Sabine manages to blow Howard's mind with her news. Oregon's relationship with Dylan comes to a head at Jean Shales' book launch.