Hypnotist Jervis Tetch/Mad Hatter arrives in Gotham to search for his sister, Alice, and hires Gordon to help find her. Meanwhile, Penguin decides to run for mayor and Bruce's doppelganger begins to channel him, causing some confusion around town.

Marco goes for a visit with Tom in his carriage to go to an 8-hour "Mackie Hands" movie marathon. Soon their friendship changes.

Sheldon can't keep up with the late nights Howard and Leonard are putting in, Raj spends the day with a pregnant Bernadette and Penny and Amy attend a faculty party.

The 11 remaining teams perform a dance inspired by a Cirque du Soleil show, while Cirque du Soleil acrobats, aerialists, dancers and fire stick performers perform alongside them.

The blind auditions continue as superstar coaches Miley Cyrus, Alicia Keys, Adam Levine, and Blake Shelton all vie to discover and coach the next singing phenomenon from the country's best vocalists.

Buff Frog attempts to solve a mystery of a hole in the wall guarding the cornfield when he gets captured by Meat Fork, a humanoid warthog monster with a fork for a left hand. Upon being put to work to grind corn, Buff Frog frees himself to discover who is enslaving the monsters. He encounters the rats as well as Ludo, who offers him Meat Fork's job. Buff Frog refuses and escapes with Meat Fork. Buff Frog decides he will warn Star that Ludo is back.

Kevin thinks he's got it made when he hires someone, via a new online app, to do household chores for him while he plays football with his buddies and then takes all the credit with Donna.

Team Scorpion must put aside their personal and romantic predicaments when anonymous hackers with unknown motives take control of U.S. military aircraft and warships and point weapons at American cities.

Richard and Aaron set an ambitious deadline of just six weeks to turn an old '49 Chevy pickup into a show-quality truck in time to debut at the big Lone Star Throwdown.

When Frank goes nuts for a century-old snack icon, he must decide if it's worth the high asking price; Mike falls hard for a Roaring '20s Roadster.

When Lucifer's mother, Charlotte, turns up at the scene of a grizzly murder pleading innocence, Lucifer is hesitant to believe her tale. Not wanting to leave her on her own, he instructs Maze to babysit her - and not to torture her, allowing him to investigate the case with Chloe.

Bonnie shares a memorable moment with Anna.

Just as Team Scorpion makes headway against the hackers controlling U.S. naval destroyers, they learn that a U.S. nuclear submarine also has been hacked and has a missile about to launch.

When one of the world's most dangerous fugitives steals a state-of-the-art time machine, the U.S. government asks a history professor, Lucy Preston, a soldier, Wyatt Logan, and a scientist, Rufus Carlin, to embark on the adventure of a lifetime and chase the criminal mastermind, Garcia Flynn, to the Hindenburg disaster of 1937. While there, Lucy, Wyatt, and Rufus each have to draw on expertise to save the present and protect the past - possibly at great personal cost.

Hayes Morrison needs to dig herself out of what could be a publicly embarrassing situation. She makes a clandestine deal with her adversary, Conner Wallace, to take on the Conviction Integrity Unit and justice system in order to save face for herself and her family. The first case Hayes pushes her team to consider is that of Odell Dwyer, a handsome former high school football player who has been in prison for eight years for murdering his girlfriend.

Jordan and Paige con their way into a luxury rehab resort for a much-needed mini-vacay. While there Paige runs into Chris, and realizes she may not be as over him as she'd thought.

Nicole catches a break and books her first national commercial. But a forbidden relationship with a boom operator stirs tension with the hard-nosed veteran director.

Host Neil deGrasse Tyson interviews high-wire artist Phillipe Petit.

Donald Trump's tax history comes into question, Roy Wood Jr. weighs in on Congress allowing Americans to sue Saudi Arabia for 9/11, and James Marsden discusses "Westworld".

Coming Soon...

Coming Soon...

Stephen welcomes Mindy Kaling, comedian Gary Owen, and a musical performance by Sum 41.

Coming Soon...

As he rescues a victim of Cottonmouth's vengeance, Luke remembers his earlier life and the conspiracy that led to his superhuman strength.

Paul F. Tompkins; David Wain; Michelle Buteau and Baked (Steve Agee and Brendon Small) perform.

Coming Soon...

Coming Soon...

Laura's one year anniversary approaches. George and the family prepare to leave for Sydney.

Shay gets the blame for Ike staying in Weld and Arlo gets serious with Emma.

An accident in rehab sets back Fletch's recovery, but it's his attitude that proves the biggest obstacle. Can he beat the doom and gloom before pushing away those who are trying to help him?

Isaac wants to impress Ric and Dom wants to impress Isaac, but when Dom sidelines his own success to help make Isaac look good they both wind up in trouble.

Mo tries to befriend Inga in light of her new role as best man. Her attempts prove futile when she puts her foot in her mouth repeatedly and winds up covered in wee, having made an enemy out of Inga instead.

Lisa and Jenna's article is the talk of the town, while Dan struggles to know what to do with Pauline. Elsewhere, Denise and Ollie have their first date.

Greg Davies sets bewilderingly brilliant tasks - involving vegetable propulsion, snowmen and Swedes - to five celebs, including Al Murray and Dave Gorman.

Benson hunts for some fries.