TV THIS WEEK: La Brea, The Walking Dead: World Beyond and 'Unidentified' premiere; plus Titans & more

This week is loaded with premieres, ranging from nuclear zombies to prehistoric sinkholes — plus a very unique search for the truth about aliens and a spook-tacular Star Wars special.

The big premiere this week is the high-concept sci-fi series La Brea on NBC, which follows the fallout of a gigantic sinkhole that opens up and leads to a mysterious, prehistoric world. Peacock also has the premiere of Unidentified with Demi Lovato, which follows Lovato on a search for the truth about alien encounters. AMC also has a big premiere on the calendar, with The Walking Dead spinoff series World Beyond returning for its second (and final) season.

Disney+ is bringing some fresh Star Wars content with the LEGO Star Wars Terrifying Tales special, along with a new episode of animated MCU series Marvel's What If...? The CW has new episodes of Supergirl and Stargirl, and if you're looking for the more R-rated side of the DC Universe, HBO Max has new episodes of Doom Patrol and Titans.

SYFY has a throwback slasher marathon to help ring in October, and Amazon Prime is dropping a couple of its Welcome to the Blumhouse horror flicks. On the family friendly side, Disney is also premiering its kid mummy movie remake Under Wraps on the Disney Channel.

Check out the full rundown below, and here's hoping we still get good reception from the bottom of that La Brea sinkhole.

HIGHLIGHTS

La Brea (NBC), Tuesday 9 p.m. - "Pilot"

SERIES PREMIERE: When a massive sinkhole opens in Los Angeles, the Harris family is split in two; Eve and her son are sent to a mysterious primeval world; Gavin discovers that the visions that have plagued him for years might hold the key to bringing them home.

Unidentified with Demi Lovato (Peacock), Thursday

SERIES PREMIERE: Demi Lovato brings viewers on a road trip alongside friends, family and leading alien experts in search of definitive answers to some of the biggest questions about extraterrestrial life.

Titans (HBO Max), Thursday - "Troubled Water"

Titans follows young heroes from across the DC Universe as they come of age and find where they belong. In season three, circumstances draw our heroes to Gotham City, where they will reunite with old friends and face new threats.

LEGO Star Wars Terrifying Tales (Disney+), Friday

PREMIERE: After The Rise of Skywalker, Poe and BB-8 must make an emergency landing on the volcanic planet Mustafar where they meet the greedy and conniving Graballa the Hutt who has purchased Darth Vader's castle and is renovating it into the galaxy's first all-inclusive Sith-inspired luxury hotel. While waiting for his X-Wing to be repaired, Poe, BB-8, Graballa, and Dean venture deep into the mysterious castle.

The Walking Dead: World Beyond (AMC), Sunday 10 p.m. - "Konsekans"

SEASON PREMIERE: Hope's commitment to the future is put to the test, jeopardizing a potential reunion; Iris and Felix meet a new group; startling revelations are made.

MONDAY

Roswell, New Mexico (The CW), Monday 8 p.m. - "Angels of the Silences"

Liz and Max race to find Heath, hoping he can help find a way to get Jones out of Max's body; Michael and Isobel try to get through to Dallas.

The Last Witch Hunter (SYFY), Monday 9 p.m.

The fate of the human race hangs in the balance when the Witch Queen (Julie Engelbrecht) rises from the dead, seeking revenge against Kaulder (Vin Diesel), the immortal warrior who slayed her centuries ago.

Creepshow (AMC), Monday 10 p.m. - "Pipe Screams; Within the Walls of Madness"

Season 2 of the Shudder hit comes to AMC. A complicated drain clog; scientists fight to contain the creature they've been studying.

Ordinary Joe (NBC), Monday 10 p.m. - "Requiem"

With the anniversary of 9/11 approaching, all three Joes grapple with the emotions that come with the day; Cop Joe and Amy pursue a romance, but Music Joe and Amy's marriage is clouded by a big secret; Nurse Joe and Jenny have a breakthrough.

TUESDAY

DC's Stargirl (The CW), Tuesday 8 p.m. - "Summer School: Chapter Eight"

With his world crashing down around him, Rick focuses his attention on protecting Solomon Grundy after learning hunters are after a bear in the woods; Beth becomes the target of Eclipso's latest plan.

History's Greatest Mysteries (History), Tuesday 8 p.m. - "Houdini's Lost Diaries"

Using new evidence to look at some of the most historically important mysteries of recent times.

La Brea (NBC), Tuesday 9 p.m. - "Pilot"

See more in our "Highlights" section above.

Supergirl (The CW), Tuesday 9 p.m. - "The Gauntlet"

Supergirl and team race Nyxly for control of a magical totem that controls courage; Lena struggles to make sense of her newfound gift.

WEDNESDAY

Marvel's What If…? (Disney+), Wednesday - "Episode 8"

Flips the script on the MCU, reimagining famous events from the films in unexpected ways. Marvel Studios' first animated series focuses on different heroes from the MCU, featuring a voice cast that includes a host of stars who reprise their roles. The series is directed by Bryan Andrews; AC Bradley is head writer.

Riverdale (The CW), Wednesday 8 p.m. - "Chapter Ninety-Four: Next to Normal"

Refusing to accept what's going on around her, Alice creates an imaginary musical fantasy world in which the Coopers are one big, happy family again; Betty does her best to pull Alice back to reality.

Blade (SYFY), Wednesday 9 p.m.

A man (Wesley Snipes) with vampire blood and his mortal partner (Kris Kristofferson) hunt a rebel vampire (Stephen Dorff) and his coterie of undead.

Archer (FXX), Wednesday 10 p.m. - "Colt Express"

A mysterious stranger and a scavenger hunt help Archer and the gang get a jump on their enemies.

American Horror Story: Double Feature (FX), Wednesday 10 p.m. - "Take Me to Your Leader"

College students who are on a camping trip are swept up in a horrifying and deadly conspiracy that has been decades in the making.

THURSDAY

Unidentified with Demi Lovato (Peacock), Thursday

See more in our "Highlights" section above.

The Lost Symbol (Peacock), Thursday - "Murmuration"

A young Harvard symbologist must solve a series of deadly puzzles to save his kidnapped mentor and thwart a chilling global conspiracy.

Doom Patrol (HBO Max), Thursday - "New Episode"

Do you have what it takes to join a super-powered gang of outcasts? Starring Matt Bomer as Negative Man, Joivan Wade as Cyborg, Brendan Fraser as Robotman, and Abigail Shapiro as Dorothy.

Titans (HBO Max), Thursday - "Troubled Water"

See more in our "Highlights" section above.

Friday the 13th Mini-Movie Marathon (SYFY), Thursday 8 p.m.

Ring in the start of October with an all night mini-marathon of classic Friday the 13th flicks. Includes Friday the 13th, Friday the 13th Part 2, Friday the 13th Part V: A New Beginning, Friday the 13th: Part VI: Jason Lives, and Friday the 13th: Part VII - The New Blood.

Zombieland: Double Tap (FX), Thursday 8 p.m.

NETWORK PREMIERE: Post-apocalyptic warriors Tallahassee, Columbus, Wichita and Little Rock must rely on their wits and weapons more than ever as they find themselves in a relentless battle against smarter, faster and seemingly indestructible zombies.

The Outpost (The CW), Thursday 9 p.m. - "The Betrayer"

Talon and Luna return to the outpost with a dubious ally; Janzo and Wren devise a plan to save the Kahvi; Talon learns about Aster's true plan.

What We Do in the Shadows (FX), Thursday 10 p.m. - "The Escape"

An ancient beast escapes and threatens the existence of all vampires everywhere.

FRIDAY

Welcome to the Blumhouse (Amazon Prime), Friday

FILM PREMIERES: Horror films Black as Night and Bingo Hell premiere.

Foundation (Apple TV+), Friday - "The Mathematician's Ghost"

Based on the award-winning novels by Isaac Asimov, "Foundation" chronicles a band of exiles on their monumental journey to save humanity and rebuild civilization amid the fall of the Galactic Empire.

LEGO Star Wars Terrifying Tales (Disney+), Friday

See more in our "Highlights" section above.

Pet Sematary (Paramount), Friday 7 p.m.

NETWORK PREMIERE: Dr. Louis Creed and his family discover a mysterious burial ground in the woods near their home. When tragedy strikes, Louis turns to his unusual neighbor, setting off a chain reaction that unleashes an unspeakable evil with horrific consequences.

Under Wraps (Disney), Friday 8 p.m.

PREMIERE: Three friends try to save their mummified friend, Harold, from greedy criminals by returning him to his resting place before midnight on Halloween.

The Most Magical Story on Earth: 50 Years of Walt Disney World (ABC), Friday 8 p.m.

Whoopi Goldberg hosts a historical journey spanning half a century and beyond at Walt Disney World, featuring spectacular visuals, musical performances from Christina Aguilera and Halle Bailey, and interviews with iconic actors and athletes.

Eli Roth's History of Horror (AMC), Friday 10 p.m. - "Sequels That Don't Suck"

SEASON PREMIERE: Fans of horror films, like "A Nightmare on Elm Street 3," "Psycho II," "The First Purge," "Bride of Chucky," "Scream 2" and "Gremlins 2: The New Batch," say sometimes sequels are as good or even better than the originals.

SATURDAY

Joker (TNT), Saturday 8 p.m.

NETWORK PREMIERE: Put on a happy face.

The Mask (SYFY), Saturday 9 p.m.

An ancient mask transforms a drab bank clerk (Jim Carrey) into a grinning Romeo with superhuman powers.

SUNDAY

Fantastic Beasts and Where to Find Them (SYFY), Sunday 6 p.m.

Magizoologist Newt Scamander (Eddie Redmayne), two sisters and a No-Maj (Dan Fogler) battle dark forces while tracking down magical creatures set free in the wizarding world of 1926 New York.

The Simpsons (Fox), Sunday 8 p.m. - "Bart's in Jail"

When Grampa falls victim to a phone scammer, the Simpsons set out on a mission of vengeance to get his money back.

Maleficent: Mistress of Evil (Freeform), Sunday 8:50 p.m.

NETWORK PREMIERE: Maleficent encounters a conniving queen who hatches a devious plot to destroy the land's fairies. Hoping to stop her, Maleficent joins forces with a seasoned warrior and a group of outcasts to battle the queen and her powerful army.

The Walking Dead (AMC), Sunday 9 p.m. - "Promises Broken"

Maggie and Elijah learn a new survival tactic from Negan; Eugene's group clears walkers to pay their fines; Yumiko interviews for an upper-class job; Daryl learns more about Leah and the Reapers; Gabriel encounters a man of God.

Fantastic Beasts: The Crimes of Grindelwald (SYFY), Sunday 9 p.m.

Magizoologist Newt Scamander joins forces with young Albus Dumbledore to prevent the devious Gellert Grindelwald from raising pure-blood wizards to rule over all non-magical beings.

Family Guy (Fox), Sunday 9:30 p.m. - "Rock Hard"

While at an old record store, Peter and the guys recount tales of three rock legends: Jim Morrison, Muddy Waters and Elton John.

The Osbournes Want to Believe (Travel), Sunday 10 p.m. - "Memories, Mermaids and More"

The Osbournes plunge deep into the paranormal sea to watch an oil monster surface from the depths of a lake and find proof that mermaids exist; Jack quizzes his parents to see if they have fallen victim to the infamous Mandela Effect.

The Walking Dead: World Beyond (AMC), Sunday 10 p.m. - "Konsekans"

See more in our "Highlights" section above.

*TV listings via Zap2it, network and streaming listings.