Lancelot is sent through time by Merlin to protect young Arthur before he becomes King of Camelot, but by accident, they both end up in present day world along with the villains. Only technology can help them now.

On another planet in the distant past, a Gelfling embarks on a quest to find the missing shard of a magical crystal and restore order to his world, before the grotesque race of Skeksis find and use the crystal for evil.

Tom Merrick gets caught up in a time-traveling conspiracy and must set the timeline right before it is irrevocably altered.

Ba'al travels back in time and prevents the Stargate program from being started. SG-1 must somehow restore history.

Anastasia Romanov escapes through a portal when her family is threatened by Vladimir Lenin, and she finds herself in the year 1988, befriended by a young American girl.

As they enter sophomore year at Monster High, Clawdeen Wolf, Draculaura and Frankie Stein face new students, new powers, and an even bigger threat that could not only tear their friendship apart but could change the world forever.

Op and Ed, two adorable donut-shaped animals - flummels - accidentally time-travel from 1835 to modern-day Shanghai. There they discover traffic, trans fats, and worst of all, that flummels are now extinct. It's up to this bumbling pair to save themselves and their species...and, just maybe, change the course of history.

As the Lich King's zombie legions ravage the world, a cursed young sorceress embarks on a quest to obtain a weapon from the gods. But when she joins her sworn enemy in a desperate attempt to save the world, she must recover the good in herself before her friends are all dead, and defeat the Lich King before the gods are destroyed and the world forever enslaved.

In a future where an adult Gwen Tennyson is president and the world is being taken over by the alien horde known as the Xerge, a disillusioned Ben 10,000 is called out of retirement to recruit his 10-year-old version from the past. Based on the 2016 reboot.

Agents J and K are back...in time. J has seen some inexplicable things in his 15 years with the Men in Black, but nothing, not even aliens, perplexes him as much as his wry, reticent partner. But when K's life and the fate of the planet are put at stake, Agent J will have to travel back in time to put things right. J discovers that there are secrets to the universe that K never told him - secrets that will reveal themselves as he teams up with the young Agent K to save his partner, the agency, and the future of humankind.

Young daredevil Ernie, his sister Julia, and his best friend Max accidentally trip a time-machine into operation and find themselves transported back in time 65 million years, where they meet a T-rex named Tyra and her rambunctious son Dodger.

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!

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

Two siblings begin to develop special talents after they find a mysterious box of toys, and soon their parents and even their teacher are drawn into a strange new world – and find a task ahead of them that is far more important than any of them could imagine.

Elaine "Ellie" Harrison has just moved from Minnesota to Annapolis, Maryland while her parents take a year-long sabbatical to continue their medieval studies in nearby Washington D.C. Her new high school, Avalon High, seems like a typical high school with the stereotypical students: Lance the jock, Jennifer the cheerleader, Marco, the bad boy/desperado, and Will, the senior class president, quarterback, and all around good guy. But not everyone at Avalon High is who they appear to be, not even Ellie herself. Eventually, it becomes apparent that Avalon High is a situation where the ancient Arthurian legend is repeating itself.

A young girl discovers a secret map to the dreamworld of Slumberland, and with the help of an eccentric outlaw, she traverses dreams and flees nightmares, with the hope that she will be able to see her late father again.

Hoping to save his sick mother, a boy named Gunner and his friend Jo venture into the remote Wild Horse forest to search for a mythical figure who possesses the secret to immortality. When they go missing, Gunner's father Amos must immerse himself in his son's world to find them.

After an Ayahuasca vision transports him to a haunted castle, Alec meets Hanna who tales him the story of her mother's forced marriage and how the forbidden passion with her father was in danger when the princess pregnancy became obvious

In 1917, two children take a photograph, which is soon believed by some to be the first scientific evidence of the existence of fairies. Based on the true story of the Cottingley Fairies.