Joe and Frank Hardy follow their father on a "fishing trip" and end up helping him solve the case of a former soldier who is being chased by killers.
Nancy Drew and her friends spot light coming from an abandoned lighthouse. Though she is told the lighthouse is haunted, and others believe she is making things up, Nancy decides to see the lighthouse for herself.
Frank and Joe Hardy search for Captain Maguire who was last seen in the mysterious Witches' Hollow.
Nancy Drew and George witness an automobile accident. However, the sheriff denies an accident ever took place and claims the road has been closed for a long time.
Frank and Joe help their father on a case about a missing Russian scientist. As they do so, they spot a UFO.
Nancy Drew looks into her aunt's attempts to sell the family farm, a place that folks are trying to convince her aunt that it is haunted.
While working for their father, Frank and Joe believe they have uncovered a murder conspiracy.
Nancy and her friends put on a play as a fund raiser for a youth center. However, the theatre they perform in is said to be haunted.
Frank and Joe look into the mystery of a disc jockey who is pirating stolen records.
Nancy Drew and her friends work at a carnival where they see a jewel robbery in action. To expose the heist, Nancy goes undercover.
Frank and Joe are in Hawaii for a surfing contest when their hotel room is broken in to. When they learn that they were not the only targets, they work with the Hawaiian police to catch the crooks.
When Nancy goes on a cruise, she must use her instincts to find the person who is sending threatening letters to a mystery writer who is on board.
Frank and Joe come across a mysterious box at the beach. Inside is a jade statue, which leads them on a trail of smuggling and extortion in a Chinese-American community.
Nancy and a friend attend a party where they witness a star football player standing over a dead body holding a murder weapon.
Frank and Joe go to Transylvania to find their father who went missing while in Europe. The two team up with Nancy Drew, who they run into while she is attending a festival at Dracula's castle.
Frank, Joe and Nancy meet up with a band of musicians and Joe asks them to play at the festival so that they can sneak backstage into the castle in order to find Frank and Joe's father.
Frank and Joe are in Egypt where they look into the claim made by a young woman that Frank is carrying a golden idol stolen from a pyramid.
The Hardy Boys and Nancy Drew team up to investigate the disappearance of people from a Hollywood film studio tour.
When lead detectives, as well as Frank and Joe's father, are kidnapped, the Hardy Boys and Nancy Drew must solve the mystery behind the Hollywood Phantom.
Frank and Joe go with their father to Kenya where they look in to poachers.
While in Nevada, the Hardy Boys help a girl who claims to have been abducted by aliens.
Frank and Joe must crash land an airplane when the pilots are mysteriously knocked out.
Frank and Joe head to Mexico with their father in order to deliver important documents. However, Frank and Joe deliver the documents to the wrong people.
Nancy goes undercover at a tennis tournament in order to help a kleptomaniac friend. There, Nancy meets a handsome tennis player.
Frank and Joe look for a deaf girl who is in danger because she accidentally came across a bomb plot.
Nancy tries to prove that a man who believes he is Santa Claus is innocent of the crimes he is said to have committed.
While in New York City, Nancy Drew teams up with a boxer to uncover a plot to assassinate the visiting prime minister of Britain.
It's the 4th of July and the Hardy Boys are in a small town for a concert. However, they soon have to look into a hit-and-run that was committed by a friend who was acting strangely before the accident.
Joe helps a woman whose psychic abilities draw her to a haunted house.
Joe comes out of a coma to find that he's been out for a year. However, nothing is as is seems.
While in New Orleans for Mardi Gras, Frank and Joe's wallets are stolen. Nancy Drew, who is working undercover as a magician comes to their aid.
Upon returning to their hotel room, Frank and Joe find that someone has left voodoo dolls for them. However, this proves to be the least of their worries.
The Hardy Boys and Nancy Drew are thrust in the middle of a woman fleeing from a band of thugs when the woman's bags are switched with Nancy's baggage.
In Hawaii, Frank rescues a girl who later disappears and is thought to be dead. He then becomes overcome with the need to figure out what has happened to her.
Frank and Joe learn that Nancy is being held against her will by a former movie star.
In New England, Joe receives a call that students have gone missing at the local Eastlake University.
Joe's fiancee is killed in a hit-and-run accident, but the police refuse to arrest the man for murder until another case is closed. Upon learning this, Joe goes undercover as a surfer to help solve the open case.
Despite being haunted by memories of his fiancee, Joe continues to investigate while undercover. Frank tries to help Joe with the case by going undercover as well, but he ends up cornered in a shark-infested part of the ocean.
When the Hardy Boys' father goes missing, Frank and Joe head to London. But when Frank goes missing again, Joe has to team up with British Intelligence to locate both Frank and his father.
The Hardy Boys are in Greece to investigate a drug smuggling ring.
Frank and Joe head to France in order to follow the trail of a girl who disappeared while on a treasure hunt.
Frank and Joe are sent to Puerto Rico to look after a senator's daughter.
The Hardy Boys are sent to locate the the daughter of a Russian official.
The Hardy Boys must find the daughter of a Russian official before the KGB does; however, Soviet Officials are getting closer and closer to her.
A woman tries to exact revenge when her family is killed in a devastating accident.
Joe and Frank are asked to protect a motocross racer, who is the daughter of a mob informant.