Diana discovers the troubles she encounters in a small town are all part of a larger plan to steal a new, thought-guided missile.

Diana comes to the aid of a kidnapped girl (Julie Ann Haddock) whose jewelry gives her superhuman powers; guest Harry Guardino.

Kidnappers try to force a student (Gary Burghoff) who discovered an explosive chemical to recreate the formula; guest Michael Cole.

Diana steps in when con artists take advantage of a boy's (Todd Lookinland) psychic powers to interfere with a peace conference.

An enemy agent (John Van Dreelen) uses hypnosis to obtain information on the test flight of a top-secret plane; guest Mitch Vogel.

IRAC is the target of a nefarious computer scientist.

Diana must protect a playboy industrialist (George Chakiris) from an assassin (Charles Pierce) who is also a master of disguise.

A conniving count's (Dick Gautier) faulty scheme of transforming lead into gold could cause a world oil crisis; guest Ed Begley Jr.

Evil Marion Mariposa (Henry Gibson) steals the world's best athletes for his tiny nation's Olympic team; guest Melanie Chartoff.

Diana poses as a top bank robber to infiltrate the organization of an international thief (Greg Morris); guest Christopher Stone.

A toy maker uses dangerous playthings as part of a plan to replace a trio of top scientists with android doubles.

Andros (Dack Rambo) and Diana attempt to retrieve the great minds of America, stolen by the alien Skrill invaders.

Planetary Council envoy Andros (Dack Rambo) arrives on Earth to retrieve an enemy alien hiding in Washington D.C.

Diana joins forces with Chinese and Soviets to stop a scientist (Roddy McDowall) who plans to turn the world into one huge volcano.

Diana goes through a staged wedding with a White House aide (John Getz) to lure a spy who gathers information from government wives.

Diana and Steve stalk a thief (David Hedison) with his eye on a small nation's crown jewels; guests Juliet Mills, John Colicos.

Diana encounters Atkinson's wayward daughter (Eve Plumb) while investigating robberies during a rock star's (Martin Mull) concerts.

Diana enlists a cab driver's (Ted Shackelford) aid to stop the assassination plans of radicals holding Steve; guest Jayne Kennedy.

Diana discovers the successful completion of her current mission could mean a nuclear test site will be built near Paradise Island.

A Japanese man who was confined in a New Mexico internment camp during World War II acquires telekenetic powers and seeks revenge.

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.

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.