Frank and Joe search for answers when Fenton is taken off the Project K case.

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.

A reclusive billionaire (Joseph Cotten) holds Nancy captive in his penthouse, and a girl (Cathy Rigby) sets fire to the building.

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.

Frank and Joe travel to an African game preserve to trap the mastermind of a huge poaching operation.

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.

Nancy is held for psychiatric observation when she tells the police an unbelievable story.

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.

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. Info from www.geocities.com/hardyboysnancydrew/program.html, got permission from Greg.

After a young woman denies the handbag he recovered is hers, Frank is left with a stolen Egyptian idol and a pile of trouble.

While in Mexico trying to solve the mysterious kidnapping of their father, Frank and Joe discover hang gliding and dangerous enemies.

A deaf woman witnesses a terrorist negotiating plans on the telephone.

While aboard a ski train to Austria, a frightened girl fleeing unknown assailants switches flight bags with Nancy.

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 end up in a haunted house and a cemetery when they follow two men trailing their father, Fenton.

The brothers find a dead man in a coffin in their hotel room.

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.

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.

Nancy goes under cover to keep a light-fingered tennis star out of trouble.

Nancy is determined to restore the honor of a dear old gentleman who claims to be Santa Claus when he is accused of burglary.

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.

The boys go under cover at a New England college where three coeds have been kidnapped.

The Hardy boys uncover a plot to kill the nation's top rock star.

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.