The Top 20 dancers perform.

Mel's pal wants Joe to be her sperm donor, and Mel and Joe try to change her mind. Elsewhere, Lennox and Haskell purchase a rare book, but they clash about how to proceed with their investment.

Ben and Tucker take baby Emma to her first doctor's appointment, and Ben ends up asking her nurse, Cassie (Briana Lane), out on a date. Riley is jealous of Ben's new relationship with Cassie, but tries to befriend her per Ben's request. Meanwhile, Danny has his first hockey game with the New York Rangers and he's very superstitious - he wears an old high school jersey that has never been washed to every game and Bonnie caters to his every ritual. Tucker, in an effort to clean up the apartment, washes Danny's jersey by accident and it shrinks down to a tattered mess - Danny is devastated. At the game, Cassie tells Riley she knows she likes Ben and directly insults her, saying Ben will only ever see her as "Fat Pants". This causes Riley to get into a girl fight with her, which is featured on the jumbotron. Emma was actually wearing Danny's lucky jersey, thanks to Tucker, and now she has become his good luck charm.

Four winning acts advance to the Top 24.

A '70 Lincoln Continental Mark III is turned into a muscle car; a '68 Ford pickup is restored.

A whistle-blower case pits Patty and Ellen against each other.

A matchmaker is Hank and Divya's new patient while Evan attempts to get his staff back in line. Paige prepares to throw a party. Protecting his family is Boris' main priority.

Now in Vancouver, Kane joins forces with the CIA to take down a lawyer who had a hand in the attack on Kane's precinct. The CIA wants the lawyer dead, and promises it will bring Kane one step closer to the man responsible for it all: The Ghost.

John Ross is bothered by the weight of having to do his father's dirty work and decides to move into Southfork. Strife continues to grow between Ann and Bobby when it is revealed she went to her ex for help with a family problem. Rebecca approaches Bobby and Christopher with information that she believes might help save the ranch.

Toby and Michelle investigate the link between a cult and the disappearance of three young women.

Leela's mom begins to date Zapp Brannigan.

Dr. Dani works her magic on a world-renown illusionist whose next trick could prove his last. In addition, Dani tells the kids about her relationship with Matt as he learns to navigate front office politics. Plus, TK gets into a Twitter flame war with an all-too-familiar foe.

Efforts to digitally preserve the contents of human brains are examined.

Trey has to come to terms with his feelings for Laura; Marie and Robb push their flirtations to the next level.

Boyce's plans for a quiet birthday with Lolli are spoiled by a surprise visit from their former neighbors in Las Vegas.

Coming Soon...

Holly tries to get to the bottom of a big secret between Eden and her boss. Stuart is about to be reunited with his beloved dog until Phil loses him.

Bryan Cranston, R.A. Dickey, Zac Brown Band

Morgan Freeman, "Britain's Got Talent" winners Ashleigh & Pudsey, Jana Kramer

The elimination challenge takes the five losing contestants to Tuscany to cook a feast for local villagers in the ancient and quaint town of Monticchelo.

Topical comedy. Dara O Briain and regulars Chris Addison, Hugh Dennis and Andy Parsons look back over the week's events with guests Josh Widdicombe, Milton Jones and Miles Jupp.