Frank and Joe end up in a haunted house and a cemetery when they follow two men trailing their father, Fenton.
Nancy and her friends see a beam of light coming from an abandoned lighthouse. When they call the local sheriff, he thinks they're imagining things because the light has disappeared. It's up to Nancy to Expose the strange mystery that surrounds the desolate structure. Soon, she finds herself in a deadly web of crime that could threaten her very life.
When the pair pay a visit to Captain Maguire, they are greeted by a strange woman who claims that Maguire has become one of the victims of Witch's Hollow. Those who go to the mysterious wooded place never return. Undaunted, Frank and Joe begin their search for Maguire, little suspecting the terrors that lie in wait for them among the dark shadows of the eerie forest.
After Nancy and her girlfriend, George, see an automobile run off the road. Nancy tells her boyfriend, Ned Nickerson, to report it to the sheriff. Later the sheriff tells Nancy that his men could not find any signs of an accident, and that the road has been closed for a long time. Nancy attempts to unravel the bizarre occurrence on her own, and soon finds herself in the midst of danger.
Frank and Joe search for answers when Fenton is taken off the Project K case.
An unseen intruder breaks into the Drew home, stealing documents that will allow Nancy's aunts, Ruby and Lela, to sell their farm. While Nancy's father goes to the State Capitol to replace the papers, Nancy heads to the Farmhouse where she is plunged into a series of strange events that lead her deeper and deeper into danger.
The Hardy boys uncover a plot to kill the nation's top rock star.
The stage is set for mystery when Nancy and her friends decide to produce a 20 year old play in order to raise money for a youth center. The play is to be presented at the allegedly haunted Palace Theatre. When members of the original cast arrive in town, strange events begin to occur both onstage and off. Nancy must figure out why the actors have come together to appear in her modest production, or the drama might just end in real life tragedy.
Joe Hardy makes his singing debut at a disco where he and Frank become involved in a record piracy case. At the club, Frank recognizes a girl who supposedly has been missing for years. When she is arrested, the brothers embark on an investigation of a crooked disc jockey and other unscrupulous musical characters.
Nancy joins a carnival to prove a young man did not steal $1 million in jewels.
While in Hawaii for a surfing contest, the boys' hotel room is robbed and the two detectives discover that they're not the only victims who've been hit. The Hawaiian police enlist their aid in tracking down the burglars. Everyone's in for the surprise of their lives when the determined duo finally crack the criminal ring.
Nancy's relaxing vacation cruise is interrupted when one of her fellow passengers, a mystery writer, receives threats against his life.
The Brothers become involved ia an unusual case of smuggling with an oriental flavor when they try to unravel the mystery that surrounds an ancient Chinese treasure. While snorkeling at the beach, Frank and Joe find an large unopened wooden box and take it home. When they discover that it contains a priceless, stolen Chinese statue, the two take off on a wild adventure that puts their lives in peril.
Nancy and her girlfriend, George, attend a victory party where they find a star football player, standing over a prostate girl, with a broken crystal vase in his hand. Only the ever persistent Nancy can unravel who's out to frame the player and why.
Nancy and the brothers team up to find Fenton Hardy, who disappeared while investigating a series of European art thefts.
Allison Troy's Transylvanian rock concert has locals fearing a reawakening of their most notorious denizen.
After a young woman denies the handbag he recovered is hers, Frank is left with a stolen Egyptian idol and a pile of trouble.
Nancy and famous criminologist Arlo Wetherly find mutilated photos of themselves.
Frank & Joe team up with Nancy Drew again in Los Angeles to attend the 14th Annual Detectives' Convention at a TV & movie studio. Joe pursues an illusory figure through the back lot of the studio's stage 24.
Frank and Joe travel to an African game preserve to trap the mastermind of a huge poaching operation.
The Hardy boys spot peculiar, alien-like people on an old missile site being guarded by federal agents.
Frank and Joe are invited to join a charter flight which passes over the Bermuda Triangle.
While in Mexico trying to solve the mysterious kidnapping of their father, Frank and Joe discover hang gliding and dangerous enemies.
Nancy goes under cover to keep a light-fingered tennis star out of trouble.
A deaf woman witnesses a terrorist negotiating plans on the telephone.
Nancy is determined to restore the honor of a dear old gentleman who claims to be Santa Claus when he is accused of burglary.
Nancy is held for psychiatric observation when she tells the police an unbelievable story.
The lead singer of a rock band runs down investigative reporter Jerry Morgan.
Townspeople revile a psychically gifted girl (Melanie Griffith) who has a mysterious tie to an eerie mansion.
Joe awakens in a Hong Kong hospital and is led to believe that he has been comatose for a year and his father and brother are dead.
While in New Orleans for Mardi Gras, Frank and Joe's wallets are stolen; Nancy works under cover as a magician.
The brothers find a dead man in a coffin in their hotel room.
While aboard a ski train to Austria, a frightened girl fleeing unknown assailants switches flight bags with Nancy.
While windsurfing in Hawaii, Frank tries to rescue a girl named Maryann (Maren Jensen) who disappears and is claimed to be dead. He then begins to become obsessed with finding out what happened to her, but someone, who is also on her trail, is watching him.
A reclusive billionaire (Joseph Cotten) holds Nancy captive in his penthouse, and a girl (Cathy Rigby) sets fire to the building.
The boys go under cover at a New England college where three coeds have been kidnapped.
After Joe Hardy's fiancée is killed by a hit-and-run driver, the FBI won't let the police arrest the man until their own case against him is finished. Joe takes the law into his own hands and goes undercover as a rich gambler with underworld connections.
Joe Hardy is still haunted by memories of his dead fiancee, but has to focus his mind on the case when Jocco's girlfriend overhears him talking to the police on the phone. Meanwhile, Frank Hardy tries to help Joe by going undercover too, but Jocco finds out and traps Frank in a shark-infested area.
Joe and Frank Hardy go to London to find their missing father, but when Frank goes missing as well, Joe and an agent from the British Ministry must find a traitor together.
In Greece to investigate drug smuggling, the Hardy Boys pose as archeology students on a dig for the lost city of Atlantis, but they are dogged by suspicious accidents and a dead body.
Frank and Joe Hardy journey from the South of France to the Caribbean to find a girl who disappeared while hunting for pirate treasure.
Frank and Joe Hardy are assigned to go to Puerto Rico to protect a senator's daughter from an international blackmailer known as the Scorpion.
When the daughter of a Russian official defects to the U.S. by hiding in one of the rock band Bread's speaker cabinets sent to Hawaii, the Hardy Boys must track her down before the KGB does.
Marla falls for an American agent, but Soviet killers pursue her.
A woman executes a securities scam from Atlantic City casinos using a code that the Hardy Boys must break.
Joe and Frank are assigned to protect a motocross racer, the daughter of a mob informant who has been threatened by assassins, but a strange woman has become obsessed with Frank.
