Season 1
Episode: 1x01 | Airdate: Nov 7, 1975
Princess Diana volunteers to return Steve Trevor to Washington, D.C. after he crashes his airplane on Paradise Island and remains in a coma. Upon arriving in Washington D.C., she establishes the secret identity of Diana Prince and begins working for Steve Trevor.
Episode: 1x02 | Airdate: Apr 21, 1976
Steve is being framed for several incidents of sabotage.
Episode: 1x03 | Airdate: Apr 28, 1976
Fausta Grables lures Wonder Woman into a trap. The unconscious Wonder Woman is then kidnapped and taken to Germany for study.
Episode: 1x04 | Airdate: Oct 13, 1976
Diana goes undercover at a beauty pageant to try to uncover a suspected spy operation behind the facade.
Episode: 1x05 | Airdate: Nov 6, 1976
Wonder Woman's sister Drusilla is sent from Paradise Island to Washington to tell Diana to come home. Drusilla discovers her own alter ego, Wonder Girl, and is kidnapped by the Nazis.
Episode: 1x06 | Airdate: Nov 8, 1976
Drusilla accidentally reveals the location of Paradise Island to the Nazis who want to go there to harvest Feminum. Wonder Woman must return home to protect her people.
Episode: 1x07 | Airdate: Dec 18, 1976
The Nazis try to get back an agent who turned on them. To help them in their efforts, they brainwash a gorilla named Gargantua to hate Wonder Woman.
Episode: 1x08 | Airdate: Dec 25, 1976
Diana and Steve learn that the thief of a formula to eliminate earthquakes is also a carrier of deadly bubonic plague
Episode: 1x09 | Airdate: Jan 8, 1977
Diana uncovers a Nazi plot to place an agent in the U.S. Bureau of Printing and flood the American economy with counterfeit money.
Episode: 1x10 | Airdate: Jan 15, 1977
The outer space Council of Planets sends an emissary to Earth, where he attracts attention from Nazis.
Episode: 1x11 | Airdate: Jan 17, 1977
As Earth's fate hangs in the balance, Diana and Steve must rescue alien Andros from Nazi abductors.
Episode: 1x12 | Airdate: Jan 22, 1977
Blankenship sends Diana and Steve to Argentina to collect a formula that makes rubber as strong as steel.
Episode: 1x13 | Airdate: Jan 29, 1977
Steve and Diana help a rancher, one of the biggest suppliers of meat to the military, battle rustlers
Episode: 1x14 | Airdate: Feb 16, 1977
Diana and her sister investigate the disappearances of American war heroes who are the subject of a movie in production.
Season 2
Episode: 2x01 | Airdate: Sep 16, 1977
A terrorist shoots down a plane carrying Maj. Steve Trevor Jr. over Paradise Island; there he is found by his father's friend Wonder Woman.
Episode: 2x02 | Airdate: Sep 23, 1977
Diana and Steve must travel to an isolated town in South America to stop a plan by a former Nazi intelligence officer (Mel Ferrer) bent on secret biological research with a frightening impact.
Episode: 2x03 | Airdate: Sep 30, 1977
A Japanese man who was confined in a New Mexico internment camp during World War II acquires telekenetic powers and seeks revenge.
Episode: 2x04 | Airdate: Oct 7, 1977
Diana discovers the successful completion of her current mission could mean a nuclear test site will be built near Paradise Island.
Episode: 2x05 | Airdate: Oct 14, 1977
Diana enlists a cab driver's (Ted Shackelford) aid to stop the assassination plans of radicals holding Steve; guest Jayne Kennedy.
Episode: 2x06 | Airdate: Oct 21, 1977
Diana encounters Atkinson's wayward daughter (Eve Plumb) while investigating robberies during a rock star's (Martin Mull) concerts.
Episode: 2x07 | Airdate: Oct 28, 1977
Diana and Steve stalk a thief (David Hedison) with his eye on a small nation's crown jewels; guests Juliet Mills, John Colicos.
Episode: 2x08 | Airdate: Nov 11, 1977
Diana goes through a staged wedding with a White House aide (John Getz) to lure a spy who gathers information from government wives.
Episode: 2x09 | Airdate: Nov 18, 1977
Diana joins forces with Chinese and Soviets to stop a scientist (Roddy McDowall) who plans to turn the world into one huge volcano.
Episode: 2x10 | Airdate: Dec 2, 1977
Planetary Council envoy Andros (Dack Rambo) arrives on Earth to retrieve an enemy alien hiding in Washington D.C.
Episode: 2x11 | Airdate: Dec 9, 1977
Andros (Dack Rambo) and Diana attempt to retrieve the great minds of America, stolen by the alien Skrill invaders.
Episode: 2x12 | Airdate: Dec 30, 1977
A toy maker uses dangerous playthings as part of a plan to replace a trio of top scientists with android doubles.
Episode: 2x13 | Airdate: Jan 6, 1978
Diana poses as a top bank robber to infiltrate the organization of an international thief (Greg Morris); guest Christopher Stone.
Episode: 2x14 | Airdate: Jan 20, 1978
Evil Marion Mariposa (Henry Gibson) steals the world's best athletes for his tiny nation's Olympic team; guest Melanie Chartoff.
Episode: 2x15 | Airdate: Feb 3, 1978
A conniving count's (Dick Gautier) faulty scheme of transforming lead into gold could cause a world oil crisis; guest Ed Begley Jr.
Episode: 2x16 | Airdate: Feb 10, 1978
Diana must protect a playboy industrialist (George Chakiris) from an assassin (Charles Pierce) who is also a master of disguise.
Episode: 2x17 | Airdate: Feb 17, 1978
IRAC is the target of a nefarious computer scientist.
Episode: 2x18 | Airdate: Mar 3, 1978
An enemy agent (John Van Dreelen) uses hypnosis to obtain information on the test flight of a top-secret plane; guest Mitch Vogel.
Episode: 2x19 | Airdate: Mar 10, 1978
Diana steps in when con artists take advantage of a boy's (Todd Lookinland) psychic powers to interfere with a peace conference.
Episode: 2x20 | Airdate: Mar 31, 1978
Kidnappers try to force a student (Gary Burghoff) who discovered an explosive chemical to recreate the formula; guest Michael Cole.
Episode: 2x21 | Airdate: Apr 7, 1978
Diana comes to the aid of a kidnapped girl (Julie Ann Haddock) whose jewelry gives her superhuman powers; guest Harry Guardino.
Episode: 2x22 | Airdate: Apr 21, 1978
Diana discovers the troubles she encounters in a small town are all part of a larger plan to steal a new, thought-guided missile.
Season 3
Episode: 3x01 | Airdate: Sep 22, 1978
A twin (Leif Garrett) steps in to sing for his teen-idol brother, kidnapped by a master criminal (Albert Paulsen); guest Dawn Lyn.
Episode: 3x02 | Airdate: Sep 29, 1978
Diana teams up with an undercover detective (Peter Brown) to bust a ring specializing in rare antique cars; guest Lance LeGault.
Episode: 3x03 | Airdate: Oct 6, 1978
Steve and Diana look into a rash of football victories by underdogs; guests Ron Ely, Roman Gabriel, Deacon Jones, Craig T. Nelson.
Episode: 3x04 | Airdate: Oct 13, 1978
Diana begins to suspect a link between an artist's (Roddy McDowall) amazingly lifelike sculptures and a recent rash of art thefts.
Episode: 3x05 | Airdate: Oct 20, 1978
Diana enlists the aid of a psychic (Paul Sand) to counteract the effects of another psychic stealing secrets from scientists' minds.
Episode: 3x06 | Airdate: Nov 3, 1978
A woman calling herself Formicida sends ant armies to attack factories producing a dangerous, unstable pesticide.
Episode: 3x07 | Airdate: Nov 10, 1978
The female half of a pair of time-travelers from the year 2155 plans to destroy the city of Phoenix.
Episode: 3x08 | Airdate: Nov 24, 1978
A teen skateboard wiz gets mixed up with a mobster who wants to turn the girl's home town into a gambling mecca.
Episode: 3x09 | Airdate: Dec 1, 1978
A crooked real-estate speculator plans to use a trained dolphin to sink an oil tanker.
Episode: 3x10 | Airdate: Dec 15, 1978
Thieves plan to impersonate Wonder Woman and her colleagues to steal jewels at a high-society party.
Episode: 3x11 | Airdate: Dec 22, 1978
A crook steals an Irish cobbler's gold to purchase $100 bill printing plates from a counterfeiter.
Episode: 3x12 | Airdate: Dec 29, 1978
An aged industrialist has his brain preserved after his death for transferral to a young man's body.
Episode: 3x13 | Airdate: Jan 12, 1979
A laser expert uses a holographic image to trick a Soviet pilot into jettisoning a warhead, later offered for sale.
Episode: 3x14 | Airdate: Jan 26, 1979
The thief of a secret laser crystal conceals himself among costumed attendees at a science-fiction convention.
Episode: 3x15 | Airdate: Feb 2, 1979
A fanatic plans to start a nuclear war by using his own television station to simulate attacks by alien spaceships.
Episode: 3x16 | Airdate: Feb 16, 1979
Diana poses as a singer to expose an extortion ring in the record business.
Episode: 3x17 | Airdate: Feb 19, 1979
An international incident looms after thieves kidnap a wealthy man and steal a missile-guidance system he sold to a foreign power.
Episode: 3x18 | Airdate: Mar 10, 1979
A thief wearing another man's face steals a vial containing a deadly virus that could destroy millions of people.
Episode: 3x19 | Airdate: Mar 17, 1979
A thief plans to use a jinxed girl in his plot to steal priceless historical documents.
Episode: 3x20 | Airdate: May 28, 1979
A boy from a town where aliens are taking over everyone sees Diana change herself into Wonder Woman.
Episode: 3x21 | Airdate: May 29, 1979
Diana discovers the invading aliens are taking over human bodies to allow them to capture an evil, criminal being.
Episode: 3x22 | Airdate: Aug 28, 1979
A scientist develops an injection that makes animals super-strong and invulnerable, then tries the formula on a human (Bob Seagren).
Episode: 3x23 | Airdate: Sep 4, 1979
A man peddling U.S. secrets abroad wants to use an amusement park as a base, but the owner (Jared Martin) won't sell.
Episode: 3x24 | Airdate: Sep 11, 1979
Leon begs his disfigured twin (Jared Martin in dual roles) to release the orphan (Ike Eisenmann) he has befriended.