Penguin gains power as he narrows in on the nomination for Mayor of Gotham. Meanwhile, Gordon turns Alice into the GCPD for the bounty. Also, Bruce and Alfred race to find Bruce's doppleganger after learning he's assumed Bruce's identity.

After Mr. Diaz fails to scare some kids with his haunted house, Star and Janna summon Hungry Larry, reputed to be a very scary spirit, to haunt the house. Janna goes missing and screams attract the kids back to the house. But the kids get scared and go missing; Star and Marco are attacked. Mr. Diaz arrives to find Hungry Larry has eaten everyone, and rescues them.

When a new threat emerges in National City, Kara/Supergirl teams up with her cousin, Clark Kent/Superman, to stop it. Kara is thrilled to have family in town but it leaves Alex feeling a bit left out. Meanwhile, Hank and Supergirl are stunned by the pod that came crashing to Earth.

When Amy's apartment floods, she proposes a "cohabitation experiment" with Sheldon. Also, Howard and Bernadette are upset when Koothrappali learns the gender of the baby before they do.

The nine remaining celebrities will set out to leave a lasting impression with their dances as they commemorate their most memorable year.

The battle rounds begin and the coaches enlist the help of the music industry's top recording artists to offer their knowledge and skills as advisers. Miley Cyrus teams up with Joan Jett, Alicia Keys with Charlie Puth, Adam Levine with Sammy Hagar, and Blake Shelton with Bette Midler. In this phase, the coaches pit two of their own team members against each other in a dueling duet. After the vocal face-off, each coach must choose which artist from their team is the strongest, and has the option of stealing losing artists from an opposing coach. Each coach has two steals during the battle rounds where their artists will proceed to the knockout rounds.

Murdoch suspects that rivals for a wealthy bachelor's affections may be responsible for a debutante's murder.

Spider with a top hat has been entertaining Star's wand monsters at a party. Afterwards, he tries to learn a fighting move where he tries to blast through a wall. Despite getting training from Narwahl and Rock, he is unable to break through the wall. The other monsters are summoned for a fight but they are beaten up. Encouraged by Rock's words, Spider is finally called.to fight a monster.

Kevin tries to spice up his time with his buddies after he sees how much fun Donna and her friends have at their book club meetings.

Richard and Aaron's goal of turning an old '49 Chevy pickup into a show-quality truck comes down to the wire as they race to finish it in time to debut at the Lone Star Throwdown.

At an old school drive-in, Mike and Danielle uncover a vintage reel of Beatles' footage that could be the only one of its kind.

Lucifer and Chloe investigate a gruesome murder after a video of the crime surfaces on social media. When a second video appears, they realize they have a serial killer on their hands. Meanwhile, Lucifer's mom returns as Charlotte Richards. Also, Amenadiel, struggling with his loss of power, has an appointment with Linda.

J.B. meets up with Shelby.

When reporter Daisy Channing arrives to meet a source with "something big" to tell her, gunfire erupts, wounding her source and killing his friend. A parallel investigation into the murder begins, one spearheaded by homicide Detective Kevin Lutz and the other led by Daisy. As they dig deeper, it becomes clear that several well-connected people know much more than they're saying.

Max deals with the aftermath of her breakup with Randy, Sophie and Oleg prepare for the birth of their baby and Han vows to take side jobs in order to take back full ownership of the diner.

When Sophie goes into labor just before the Dessert Bar's grand opening, she demands that Max and Caroline be present for the birth. Also, the girls run into problems when they don't secure a liquor license for their new venue.

When Walter is accidentally launched into space in a rocket, he hallucinates about Paige as his oxygen runs low, and Team Scorpion works feverishly to find a way to bring him home before he suffocates.

Lucy, Wyatt, and Rufus chase terrorist Garcia Flynn to the night of Lincoln's assassination, where they're horrified to learn that Flynn's linked up with history's most notorious assassin, John Wilkes Booth. Putting aside a tragedy of her own, Lucy speculates that Flynn intends to send the fragile nation into chaos by making a bad thing worse, and a debate rages among the team: should they alter history if it means changing it for the better?.

Hayes confronts Wallace head-on, investigating the case that made his career: the Prospect 3. Three young white men confessed to the rape and robbery of a young black woman. Hayes hopes to catch Wallace off guard with the team's investigation, but when the young woman's character takes a hit in the press, she is victimized for a second time.

Jordan needs to move fifty pounds of bulk weed before it rots and they lose their entireinvestment, but she has her hands full when she partners with a 19 year-old gamer in abranding venture.

Full Frontal presents an extra-large post-debate episode.

Nicole befriends a novice male stripper after she's pushed aside by Veronica while planning a bridal showe.

Host Neil deGrasse Tyson interviews "Back to the Future" actor Christopher Lloyd and "Dr. Who" actress Michelle Gomez.

Donald Trump brags about groping women in a 2005 video, Trevor likens Trump to an African dictator, and Xavier Becerra discusses Hillary Clinton's presidential campaign.

Coming Soon...

Coming Soon...

While Rooster tries to broker peace between Beau and Maggie, Colt apologizes to Heather - but his timing couldn't be worse.

In one bold move, a friend from his past puts Luke on the defensive, Misty in dire straits, and Harlem's safety in jeopardy.

Maria Bamford; the Lucas Brothers; Martha Kelly and the Five Footprints (Joe DeRosa, Ron Funches, Drennon Davis and Rory Scovel) perform.

Coming Soon...

asmine gets herself into trouble as she battles her hangover while working with Ric. Things take a turn for the worse when she finds comfort speaking to Tristan Wood, using him as her confidant.

Ella reveals she's pregnant. But how will Finn react? Elsewhere, the petition to save the park is in full swing and Denise and Ollie go on a second date.

Greg Davies thinks outside the box - or inside a cement-filled shoebox in Rob Beckett's case - as he sets nutty tasks. Dave Gorman gets all bitey!.

Mordecai and Rigby try to avoid spoilers about their favourite TV show.