StreamFlix is a modern, free way to discover and watch movies and TV shows. Powered by TMDB metadata, designed with care, and built to be fast on every device.

Free forever No account needed

Browse

Home
Movies
TV Shows
Trending

Discover

Top Rated Movies
Top Rated Shows
New Releases
Search

Legal

Terms of Service
Privacy Policy
Disclaimer

Please note: StreamFlix does not host any files itself; instead, it only displays content from third-party providers. Legal issues should be taken up with them.

© 2026 StreamFlix. All rights reserved.

Metadata by TMDB. Not endorsed or certified by TMDB.

Home Movies TV Shows Trending

Loading player…

Streaming via XPrime

Back to details

Now Playing

Howard Lovecraft & the Undersea Kingdom(2017)

4.6/1020171h 29mAnimation · Family · Fantasy · Adventure · Horror

After conquering R'yleh and the Frozen Kingdom young Howard Lovecraft must now travel to the Undersea Kingdom in order to free his captured family, protect three mysterious magical books, and prevent the impending wrath of Cthulhu.

Playback is provided by a third-party source (XPrime). StreamFlix does not host any video files. If a stream fails to load, the source may be temporarily unavailable.

Status: Released
Runtime: 1h 29m
Released: 2017-09-23
Rating: 4.6 (13)

Iframe is sandboxed to block popups and ads. Some sources may still occasionally redirect.

More to watch

You Might Also Like

Welcome to Smelliville

Welcome to Smelliville

The Oggly family arrive at the municipal rubbish dump of Smelliville and must look for a new home, but they never feel really welcome anywhere. They stink and are for most humans just a tad too oggly. When Firebottom, the family dragon, crash-lands on the run-down rubbish tip of the small town of Smelliville, the Ogglies at once feel at home. And it's here they want to stay.

Welcome to Smelliville

2021 · Movie

The Princess and the Goblin

The Princess and the Goblin

The story is about the Princess Irene and a young warrior boy named Curty. Irene must use her magic power to fight off goblins and save the kingdom.

The Princess and the Goblin

1991 · Movie

Monster High: Frights, Camera, Action!

Monster High: Frights, Camera, Action!

When Draculaura is led to believe she's the rightful heir to the vampire throne, she and her best ghoulfriends are whisked away to Transylvania for a royal coronation to die for. But they soon discover the hunt for the queen is not over yet. The Ghouls must locate an ancient artifact known as the Vampire's Heart in order to discover the identity of the true Vampire Queen. It's a fangtastic adventure that will lead them from the Tower of Londoom, to a haunted river boat in New Goreleans and finally to the glamorous boo-vie lots of Hauntlywood. Could this be the moment when Draculara finally receives her vampire powers and discovers screams really can come true?

Monster High: Frights, Camera, Action!

2014 · Movie

Hilda and the Mountain King

Hilda and the Mountain King

When Hilda wakes up in the body of a troll, she must use her wits and courage to get back home, become human again — and save the city of Trolberg.

Hilda and the Mountain King

2021 · Movie

Strange World

Strange World

A journey deep into an uncharted and treacherous land, where fantastical creatures await the legendary Clades—a family of explorers whose differences threaten to topple their latest, and by far most crucial, mission.

Strange World

2022 · Movie

Trollhunters: Rise of the Titans

Trollhunters: Rise of the Titans

The Guardians of Arcadia reunite to battle the nefarious Arcane Order, who've reawakened the primordial Titans.

Trollhunters: Rise of the Titans

2021 · Movie

Marvel Rising: Playing with Fire

Marvel Rising: Playing with Fire

Inferno’s powers are stolen by a young and powerful villain and it’s up to the Secret Warriors to defeat their new foe and help their friend. But does Inferno even WANT his powers back? Meanwhile, America Chavez learns a lesson about friendship and family from teammate Ms. Marvel.

Marvel Rising: Playing with Fire

2019 · Movie

Snow Queen

Snow Queen

Since a bitter winter storm stole the life of Gerda's mother, she and her father have sadly continued to run the remote hotel they call home. Lonely and isolated, Gerda's only joy is Kai, the handsome bellboy. A mysterious guest with an icy stare arrives at the hotel one night, wrapped in fur and diamonds. By daybreak, the "Snow Queen" has vanished with Kai! Gerda embarks on a journey of morphing seasons, fantastical creatures, and long-frozen mysteries in a desperate quest to find her stolen love.

Snow Queen

2002 · Movie

Legends of Oz: Dorothy's Return

Legends of Oz: Dorothy's Return

Dorothy wakes in post-tornado Kansas, only to be whisked back to Oz to try to save her old friends, the Scarecrow, the Lion, the Tin Man, and Glinda, from a devious new villain, the Jester. New comrades Wiser the Owl, Marshal Mallow, China Princess, and Tugg the Tugboat join Dorothy on her latest magical journey through the colorful landscape of Oz to restore order and happiness to Emerald City.

Legends of Oz: Dorothy's Return

2014 · Movie

The Black Cauldron

The Black Cauldron

Taran is an assistant pigkeeper with boyish dreams of becoming a great warrior. However, he has to put the daydreaming aside when his charge, an oracular pig named Hen Wen, is kidnapped by an evil lord known as the Horned King. The villain hopes Hen will show him the way to The Black Cauldron, which has the power to create a giant army of unstoppable soldiers.

The Black Cauldron

1985 · Movie

The Academy of Magic

The Academy of Magic

Aura is gifted with magical abilities; she and her friends have many exciting adventures at the academy, but soon Aura learns that the school hatches many dark secrets that she must uncover. Will she be able to unveil the truth?

The Academy of Magic

2020 · Movie

SlugTerra: Return of the Elementals

SlugTerra: Return of the Elementals

A new member has joined Eli and the Shane Gang! Junjie, once the protector of the Eastern Caverns, is a master of the slugslinging art of Slug Fu! But even with the power of five slingers, the Shane Gang find themselves in over their heads as they race across The 99 Caverns in search of the Legendary Elemental Slugs. The five Elementals are ancient slugs of great power, and the forbearers of all slugs found in SlugTerra today. In the wrong hands, they could bring Slugterra to the brink of destruction. So when an evil alliance starts hunting down the Elementals, Eli and his friends — old and new — take off in pursuit of the greatest threat their world has ever faced!

SlugTerra: Return of the Elementals

2014 · Movie

Monster High: Haunted

Monster High: Haunted

Lurk what's waiting for the Monster High ghouls when they bring their killer fashion to the howlways of the spooktacular Haunted High! When the ghouls of Monster High follow Spectra Vondergeist one day, they discover a creeperiffic Ghost World with an all-spirit school. But their scary-cute student bodies are hardly welcome with the very strict Principal Revenant, and she punishes Spectra with frightful detention chains that prevent her from re-joining Monster High. Now, it's up to the imperfectly perfect friends to take on ghostly forms in order to save one of their own from disappearing forever!

Monster High: Haunted

2015 · Movie

Cranston Academy: Monster Zone

Cranston Academy: Monster Zone

An intelligent 15-year-old high school student is unexpectedly transferred to a boarding school where he opens a portal of monsters from another dimension.

Cranston Academy: Monster Zone

2020 · Movie

Return from Witch Mountain

Return from Witch Mountain

Tony and Tia are other-worldly twins endowed with telekinesis. When their Uncle Bene drops them off in Los Angeles for an earthbound vacation, a display of their supernatural skill catches the eye of the nefarious Dr. Gannon and his partner in crime, Letha, who see rich possibilities in harnessing the children's gifts. They kidnap Tony, and Tia gives chase only to find Gannon is using her brother's powers against her.

Return from Witch Mountain

1978 · Movie

Return to Never Land

Return to Never Land

In 1940, the world is besieged by World War II. Wendy, all grown up, has two children; including Jane, who does not believe Wendy's stories about Peter Pan.

Return to Never Land

2002 · Movie

Epic

Epic

A teenager finds herself transported to a deep forest setting where a battle between the forces of good and the forces of evil is taking place. She bands together with a rag-tag group characters in order to save their world—and ours.

Epic

2013 · Movie

The Lord of the Rings: The War of the Rohirrim

The Lord of the Rings: The War of the Rohirrim

A sudden attack by Wulf, a clever and traitorous lord of Rohan seeking vengeance for the death of his father, forces Helm Hammerhand, the King of Rohan, and his people to make a daring last stand in the ancient stronghold of the Hornburg.

The Lord of the Rings: The War of the Rohirrim

2024 · Movie

Robin Robin

Robin Robin

A bird raised by mice begins to question where she belongs and sets off on a daring journey of self-discovery.

Robin Robin

2021 · Movie

Discovering Dinotopia

Discovering Dinotopia

The citizens of Waterfall City flee for the tenuous safety of Earthfarm, abandoning their city to the dangerous Outsiders - who discover the key to Dinotopias future and threaten its survival.

Discovering Dinotopia

2002 · Movie

Watch Howard Lovecraft & the Undersea Kingdom • StreamFlix