Air date: 1977-09-11

Runtime: 47 min

Nancy and the brothers team up to find Fenton Hardy, who disappeared while investigating a series of European art thefts.

Air date: 1977-09-18

Runtime: 47 min

Allison Troy's Transylvanian rock concert has locals fearing a reawakening of their most notorious denizen.

Air date: 1977-09-25

Runtime: 47 min

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

Air date: 1977-10-02

Runtime: 46 min

Nancy and famous criminologist Arlo Wetherly find mutilated photos of themselves.

Air date: 1977-10-09

Runtime: 47 min

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.

Air date: 1977-10-16

Runtime: 48 min

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

Air date: 1977-10-30

Runtime: 48 min

The Hardy boys spot peculiar, alien-like people on an old missile site being guarded by federal agents.

Air date: 1977-11-06

Runtime: 47 min

Frank and Joe are invited to join a charter flight which passes over the Bermuda Triangle.

Air date: 1977-11-13

Runtime: 47 min

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

Air date: 1977-11-20

Runtime: 47 min

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

Air date: 1977-11-27

Runtime: 47 min

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

Air date: 1977-12-18

Runtime: 47 min

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

Air date: 1978-01-01

Runtime: 46 min

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

Air date: 1978-01-08

Runtime: 47 min

The lead singer of a rock band runs down investigative reporter Jerry Morgan.

Air date: 1978-01-22

Runtime: 48 min

Townspeople revile a psychically gifted girl (Melanie Griffith) who has a mysterious tie to an eerie mansion.

Air date: 1978-01-29

Runtime: 48 min

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.

Air date: 1978-02-12

Runtime: 47 min

While in New Orleans for Mardi Gras, Frank and Joe's wallets are stolen; Nancy works under cover as a magician.

Air date: 1978-02-19

Runtime: 47 min

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

Air date: 1978-02-26

Runtime: 47 min

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

Air date: 1978-03-12

Runtime: 48 min

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.

Air date: 1978-04-01

Runtime: 48 min

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

Air date: 1978-05-07

Runtime: 48 min

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