A school on Long Island has a study body made up of teenagers of scientists and other prominent people. Thrush is secretly running the facility and programming the students to steal secrets from their parents. Kuryakin acts as bodyguard for the teenage daughter of a scientist while Solo gets inside the school. Written by Bill Koenig

Solo is attacked by a cyborg (a mostly electronic being with some human organs) while on a mission. Later, it's discovered that a Thrush front company is seeking a $1 billion loan. Eventually, Solo and Kuryakin uncover a plot to mass produce cyborgs. Written by Bill Koenig

Solo (Robert Vaughn) and Kuryakin (David McCallum) narrowly escape an attempt on their lives in Venice. Solo has caught pneumonia as a result of a swim in the Venice canals. As a result, he is replaced on the mission by Mark Slate (Noel Harrison). Slate is to prepare a stripper to take the place of a woman in the employ of Thrush (Joan Collins in a dual role). Written by Bill Koenig

Mobsters are using the production of a movie as a front for an operation involving Las Vegas -- dropping a giant stink bomb on the city.

Thrush is operating out of a monastery it has taken over. The criminal organization plans to destroy the Louvre with a ray gun.

Thrushman Mark Ole has developed a chemical that induces fatal hiccups. He operates out of Greenwich Village in New York City and uses a gang of beatniks.

Munitions magnate Brutus Thor intends to assassinate a Ghandi-like figure who protests for peace. Solo and Kuryakin must stop a plan to blow up a disarmament conference where Thor's target will deliver a major speech.

Thrush kidnaps the wife of a U.S. presidential candidate and substitutes a double.

UNCLE and Thrush are seeking a Thrush code book in Algiers.

Thrush is planning to tap into UNCLE's main computer in New York City. To do so, the criminal organization is bankrolling a musical play that will provide cover for the group's real plan.

Thrush, led by the nervous Louis Strago and his assassin secretary Miss Diketon, has embarked on an ambitious project. The organization has recruited a Nazi scientist who once theorized by changing the Gulf Stream, you could make Iceland into a lush, green country and make Europe into a frozen wasteland. Thrush is prepared to make the scientist's dream a reality. By the end of Part I, Napoleon Solo faces a forced marriage to a relative of retired gangsters while Illya Kuryakin is being tortured by Miss Diketon. Written by Bill Koenig

Napoleon Solo sets off for a Thrush island, from where the criminal organization will fire nuclear missiles to alter the path of the Gulf Stream. During the course of events, Solo enters into an uneasy alliance with retired gangsters; Miss Diketon betrays Thrush leader Louis Strago; and Illya Kuryakin nearly drowns. Written by Bill Koenig

Solo and Kuryakin investigate a plot in Ghupat, a nation in the Himalayas.

Kuryakin is captured while investigating a mysterious threat in an African country. Solo is sent to pick up his trail. The agent encounters a woman simply named Girl who has a pet gorilla named Baby. For reasons not readily apparent, Solo at one point dances with the gorilla. Written by Bill Koenig

The leader of a country (who appears to be modeled on Nikita Kruschev) is visiting New York City. Solo and Kuryakin must protect him from assassination attempts.

Scientist Dr. Adrian Cool informs UNCLE that his radio telescope is showing a spaceship heading to Earth. At the same time, Dr. Cool's daughter is kidnapped. All of this has been devised by evil industrialist Simon Sparrow as a means to grab power for himself. Written by Bill Koenig

UNCLE and Thrush have tracked a scientist, missing for 10 years, to a suburban community.

Thrush hopes to use a suspended animation device, invented by Dr. A.C. Nillson, against UNCLE.

Kuryakin is stranded on a freighter carrying cargo bound for a Thrush operation. Thrush has a device that can cause tidal waves and is demanding $10 billion for not using it.

Tunick, the leader of a former French colony, is the subject of a plot led by his No. 2 official. That official wants to manipulate Tunick into stealing Napoleon's tomb, a move that will embarrass the leader and drive him from office.

Solo and Kuryakin endure a series of misadventures involving Greek bandits and a stolen UNCLE codebook.

Thrush steals a powerful UNCLE-developed explosive hidden in a hula doll. The explosive will detonate if heated to 90 degrees Fahrenheit. This is bad news because New York is in the midst of a heat wave. Solo and Kuryakin must also contend with a pair of brothers, each vying for power within a New York Thrush operation. Written by Bill Koenig

A young woman's novel reads uncomfortably similar to UNCLE cases involving Thrush. UNCLE investigates whether the woman, who has lost her memory following an attack, may have had access to secret Thrush records.

UNCLE and Thrush are seeking a missing piece of microfilm.

The pattern of a dress is really a Thrush code. UNCLE and Thrush are each trying to get the dress.

Solo plants a stolen Thrush formula on an innocent woman tourist. Both UNCLE and Thrush are seeking the formula.

Solo (Robert Vaughn) faces Thrush agents, a girl (Jeannine Reilly), her shotgun-toting father (Gil Lamb) and a preacher (Dub Taylor), as he and Kuryakin (David McCallum) search for exploding apples.

A scientist, Dr. True, has developed a process for extracting gold from seawater. He dies just as he is performing a demonstration for Solo and Kuryakin. His death has been arranged by Thrush. However, Dr. True has scattered his formula to the four winds -- stepdaughters he has around the world. Both UNCLE and Thrush pursue the formula. As part I ends, Solo, Kuryakin and Sandy, Dr. True's natural daughter, are left tied up in an UNCLE plane by Thrush operatives. The Thrushman parachute to safety as the UNCLE plane flies on with no one at the controls. Written by Bill Koenig

The UNCLE agents free themselves and get control of the UNCLE plane just before it runs out of fuel. Solo and Kuryakin, accompanied by Sandy True, resume their search for the late Dr. True's formula. They are dogged by Randolph, a Thrushman, accompanied by his karate killers. They all eventually wind up at a secret Thrush installation where the criminal organization plans to use Dr. True's process to produce gold on a massive scale. Written by Bill Koenig

Alexander Waverly is scheduled to receive an honorary degree at his alma mater, Blair University. UNCLE is on guard to protect Waverly against an assassination attempt by Thrush.