The Top 8 dancers perform with All-Stars from previous seasons, and two more are eliminated. Jesse Tyler Ferguson ("Modern Family") is the guest judge.

Mel is shocked when Joe offers to marry Elena in order to keep her in the country, and refuses to take part in his scheme. But when it looks like everything will fall apart, Mel takes charge in order to protect both of them. But will Joe really go through with the wedding?

Riley is planning a wedding for her friend, Katie (Melissa Tang), and gets everybody involved. Danny and Tucker ruin the wedding cake and they try to fix it. After a night of partying before the wedding, Ben and Katie awaken to find themselves in bed together. Katie feels extremely guilty and tries to call off the wedding before Ben gives her a speech about true love, something that touches Riley. It turns out that Gene (Trent Garrett), a jerk from their high school days, was playing a prank on them and Ben & Katie never actually did anything. After the wedding, Ben asks Riley for a dance, while a jealous Danny looks on.

Three acts advance to the Top 6. Neon Trees perform.

The Power of Veto competition is held.

Ellen begins to uncover the truth about her attacker. Chris Sanchez approaches McClaren with information.

HankMed treats a pop star before her tour; Evan helps Paige prepare for school; Hank gets to know a local pediatrician; Divya becomes distracted.

Kane continues to track the suitcase nukes but now suspects that his contact inside the CIA may be working against him. Kane knows he is running out of time and teams up with an old friend to stop the suitcase nukes from reaching the buyers.

In Australia, Mike Rowe teams up with local business "Snakes Away" to capture a poisonous Eastern brown snake without getting bitten, then joins a posse of local "toadbusters" in their war against the cane toad, a non-indigenous species destroying the local ecosystem.

Toby and Michelle look into an array of violent home break-ins, which are being interrupted by a vigilante citizen dressed as a superhero.

Under the orders of the Robot Mafia the Planet Express Crew must rob a casino.

As the Hawks season opener nears, Dani, TK, and the team teeter on the precipice of disaster. Who will come crashing down?

Marie's fling, Max, visits, creating tension between her and Robb. Later, Max causes more drama when he starts flirting with LaToya. Meanwhile, Brandon meets a girl who tempts him to start drinking again.

Barton makes plans to move to Florida after visiting his brother. Meanwhile, the Ballentines prepare for a big storm - and Barton's estranged wife - headed straight for St. Louis.

Coming Soon...

For a nature documentary the Planet Express Crew are re-imagined as wild animals.

One of Phil's clients, tennis star Chuck Feeney, hides from the paparazzi by staying with the guys, who begin to wonder about his reputation as a ladies' man. Meanwhile, Eden's pregnancy creates a TLC competition between Holly and Haskell.

GOP Convention 2012: Wednesday

Shia LaBeouf, Rebel Wilson, Owl City with Carly Rae Jepsen

Jennifer Burns

Michelle Obama, the Chevin

Bill Maher, Tristan Prettyman

Jeffrey Dean Morgan, Fiona Gubelmann

Troublemaker Lula's home life spills into school as Tom attempts to uncover the root of her disruptive behaviour; a desperate Connor tries to out Christine's drinking; Josh helps Tariq face up to his disabilities; and Grantly deals with a spate of graffiti at the school house. Lula Tsibi's homelife is far from happy. Distressed following another heated argument with her over-bearing Uncle Lionel, Lulu runs to the sanctuary of her school but her behaviour irks the other pupils and gives the teachers cause for concern. Matters come to a head at Denzil's commemorative ceremony when Lula lashes out at Imogen and Sian. Far from being apologetic, Lula makes some unsettling comments about death. And later, she has a run in with Tariq, hurtfully suggesting his disability is a punishment from God. Tom speaks to Lula's uncle Lionel. But when Lula hears this she tells Tom her uncle plans to perform an exorcism on her believing she's possessed. Terrified, she begs Tom to help her. Elsewhere Connor bugs his mother to lay off the alcohol but is met with Christine's usual hostility. Playing up in class, Connor attempts to shame Christine but it backfires and he's humiliated in front of his classmates. Concerned, Imogen tells Connor he can't look after his mother forever - advice which spurs Connor to take drastic action. Grantly is furious when his car is vandalised by Havelock kids but Michael wants to keep the peace and not involve the police. But while Michael attempts to build bridges with rival headteacher Gerard Findlay, Grantly can't help but rock the boat. Also this week, Josh tries to convince Tariq life is worth living, but Tariq isn't interested and Sian receives an unexpected visitor at the gates of Waterloo Road.

It begins as an ordinary day, but while out running on Crosby beach, John Paul runs into his ex-girlfriend Cassandra and their daughter Libby. He sees a glimpse of the family he could have had, but Cassie isn't interested in a reunion. Later as he is enjoying lunch with his best mate and colleague Andy Stockwell he witnesses a gang of men mistreating a waitress. He ends up intervening and finds himself face to face with a very unpleasant Finch, who threatens to attack the next policeman that he sees.