14 best shows like Blue Fin (1978)

On the shores of Cape Mercy, a skillful group of teen divers investigate a series of secrets and signs after one of their own mysteriously goes missing.

House of Anubis is a jointly Nickelodeon British, American, and Belgian mystery television series based on the Dutch-Belgian television series Het Huis Anubis aired in the Netherlands and Belgium. The series was created by Hans Bourlon and Gert Verhulst and premiered on Nickelodeon on New Year's Day 2011 in the United States and on 25 February 2011 in the United Kingdom. The series is the first Nickelodeon series to be filmed overseas, the first soap opera created by Nickelodeon and the channel's first soap opera aimed at children and teenagers. As of 25 February, the program will be broadcast on TeenNick. The show has since concluded its third season and as of 28 September 2013 Nickelodeon has not announced a fourth season.

Lyra is an orphan who lives in a parallel universe in which science, theology and magic are entwined. Lyra's search for a kidnapped friend uncovers a sinister plot involving stolen children, and turns into a quest to understand a mysterious phenomenon called Dust. She is later joined on her journey by Will, a boy who possesses a knife that can cut windows between worlds. As Lyra learns the truth about her parents and her prophesied destiny, the two young people are caught up in a war against celestial powers that ranges across many worlds.

The orphaned Baudelaire children face trials, tribulations and the evil Count Olaf, all in their quest to uncover the secret of their parents' death.

A 15-year-old from LA spends the summer at her mom's childhood home on an island off the coast of England, where she bonds with a mysterious horse.

After crash-landing on an alien planet, the Robinson family fights against all odds to survive and escape. But they're surrounded by hidden dangers.

Sleuthy foster siblings Max, Tess, Sal, Anika, and Daniel Hunter find new quests, more mysteries, and even new Hunter sibs!

Everything changes when Alex Rider learns that his uncle Ian has actually been killed in the line of duty as a British spy. The normal teen is approached by the head of The Department and pressured to help investigate his uncle's death. Alex reluctantly assumes a new identity and goes undercover in a remote boarding school called Point Blanc.

R. L. Stine's The Haunting Hour is a Canadian/American original anthology horror-fantasy series, with episodes each half an hour long. The series is based on The Haunting Hour: Don't Think About It Movie, and the books The Haunting Hour and Nightmare Hour anthology by R. L. Stine.

12-year-old Griffin Campbell and his family move to the small town of Sulphur Springs and take ownership of an abandoned hotel rumored to be haunted by the ghost of a girl who disappeared decades ago. Griffin befriends Harper, a bright-eyed, mystery-obsessed classmate and together, they uncover a secret portal that allows them to travel back in time. In the past, they’ll attempt to uncover the key to solving this unsolved mystery, a mystery that affects everyone close to them.

National Velvet is an American drama series

"Lab Rats: Elite Force" is set in a bustling metropolis after the Mighty Med hospital is destroyed by a band of unknown super-villains. After Adam and Leo volunteer to oversee the students at Davenport's Bionic Academy, Kaz, Oliver and Skylar join forces with Chase and Bree to form a powerful elite force that combines bionic heroes and superheroes. Together, they vow to track down the villains and keep the world safe.

With the strength of Hercules, the wisdom of Athena, the speed of Mercury and the beauty of Aphrodite, she’s Wonder Woman. Beautiful Amazon princess Wonder Woman travels to 1940s America disguised as Diana Prince, assistant to handsome but trouble-prone Major Steve Trevor. Using her golden belt, which imbues her with astonishing strength, her bullet-deflecting bracelets, a golden lasso that dispels dishonesty and an invisible supersonic plane, Wonder Woman combats evil.

This three-part, self-contained limited series is about the newest member of the Midnight Society, her first scary tale, and what happens to the group when the terrifying events of her story start to actually happen in their small town.