Steve must stop a group of government conspirators who have assembled an atomic bomb from stolen parts.

While scientist David Tate experiments in space with a serum designed to awaken cryogenically frozen patients, he is accidentally injected with too much serum. When the space capsule crashes, he begins terrorizing the countryside and Steve must hunt him down.

When the Prime Minister of a small country has a heart attack while negotiating a peace treaty with neighboring countries, she is selected to receive the first bionic heart. Steve is assigned to protect her while she is transported to the secret hospital where the procedure will take place.

When Steve discovers that there is another bionic man - Barney Hiller, a race car driver - he is assigned to help him adjust to his bionics.

A UFO carrying four anthropomorphic aliens seeking a new home on earth crashes into the ocean. The aliens manage to escape their lost vessel and swim ashore. Having witnessed the UFO’s flight, Steve Austin investigates a town close to the point of impact. Things quickly turn confrontational when physical contact between an alien and a human causes the alien to slowly die and the human to suffer radiation burns. Steve Austin befriends the aliens and attempts to assist the sole survivor in returning to her people before she dies. Despite astronomical odds, an impending rocket launch appears to be the only possible solution.

When Oscar disappears, Steve investigates a lead involving a government-operated gold mine.

Steve attempts to re-test the experimental plane that caused his near fatal accident. When suspicious things begin to happen, Oscar reveals to Steve that his first crash might not have been an accident. Steve chooses to proceed with the experiments hoping to lure the saboteurs into the open.

While Steve is helping a science team place earthquake sensors on the ocean floor, their boat is notified that the nearby country of Santa Ventura has broken off diplomatic relations with the US. Before their boat can leave the area they are captured by a Venturan patrol boat and Steve must help the team to escape.

When Steve jumps a 12 foot fence to fix a malfunctioning space capsule, a newswoman happens to get it on film. After her boss sees the footage he attempts to kidnap Steve so he can sell him to a foreign country.

Steve is assigned to protect Liza Leitman, an equestrian trying to make the Olympic team; also the creator of the cryptography code that links computers and secret communications world-wide.

Steve consoles a woman, with whom he was once romantically involved, after her husband apparently dies in a plane crash.

The last known golden cougar is on the verge of being hunted down by local ranchers trying to stop their livestock from being killed. Steve's friend, and a local rancher, asks Steve to help him save the cougar from extinction.

While Steve Austin is on a one week fishing vacation, a Steve Austin look-alike shows up at Oscar Goldman’s office claiming that he decided to cut his vacation short. He secretly takes photographs of the Omega Project files, which are turned over to a middleman named Breezy. The real Steve Austin returns just in time to catch his double getting a tour of the Omega Project facility. The impostor is hit by a car and killed in the ensuing pursuit. Steve Austin then poses as the impostor, a former boxer named John Dine who had his face surgically altered to resemble the bionic OSI agent. The search for the photographs eventually lands him in the ring of a crooked boxing promoter.

When Oscar discovers that the construction of a top secret laser is being duplicated, he suspects that Harry Green, the expert overseeing the project, is a traitor. However, Steve disagrees and believes that Green's thoughts are being monitored through ESP. He obtains the help of Audrey Moss, also gifted with ESP, to track down the spy.

Steve Austin buys a ranch in his hometown of Ojai, California. He reunites with childhood friend Jaime Sommers who is now a professional tennis player. They rekindle a brief childhood romance. Jaime Sommers is injured in a skydiving accident when her parachute collapses toward the end of a jump. Her right arm, right ear, and both legs are severely injured. With Jaime’s life in peril, Steve Austin persuades a reluctant Oscar Goldman to fit her with bionics. Although skeptical at first, Jaime Sommers quickly acclimates to her mechanized components. The bond deepens between the two bionic humans. Steve Austin proposes marriage to Jaime Sommers, and she accepts.

While Steve Austin and Jaime Sommers plan their wedding, Oscar Goldman submits his bill for making Jaime Sommers a bionic woman: She is to go on her first assignment with her fiancé to switch a flawed U.S. $20 bill printing plate for a perfect copy in the possession of a foreign counterfeiter named Joseph Ronaugh. Steve Austin vehemently objects, but Jaime Sommers acknowledges her debt and agrees. The two succeed in their mission despite a malfunction in Jaime Sommer’s bionic arm which nearly causes it to fail. It is soon discovered that her body is rejecting the bionics. Dr. Rudy Wells conducts an emergency surgery to no avail. Jaime Sommers dies.

Revolutionaries kidnap the wife of the US Ambassador to the nation of Balinderry. In exchange for her release, the revolutionaries want their imprisoned fellow revolutionaries freed. With the help of Julia Flood, his liaison with the kidnappers, Steve attempts to rescue the ambassador's wife.

Steve Austin's bionic legs are heavily damaged during a mission and while recuperating at Dr. Rudy Wells' hospital, he catches a glimpse of his fiancée, Jaime Sommers, still alive but recuperating.

Steve Austin takes the recuperating Jaime Sommers to their hometown of Ojai in an attempt to jog her memory. Unfortunately this only results in her getting violent headaches and confusing flashbacks.

Bitter explosive expert Robert Meyer arranges for the Liberty Bell to be stolen, rigs it with three bombs and demands five million dollars. Complications mount up and Steve Austin is forced to ask imprisoned bomb expert Linstrom to help defuse Meyer's handiwork.

Steve is assigned to keep an eye on his college buddy, the entertainer John Perry. Oscar suspects the singer of being a courier for an espionage ring.

When Kuroda is asked to track down a wolf boy roaming the island forests of Hoyoko, Japan, he asks for only one man to help him: his friend Col. Steve Austin.

Steve Austin is on reserve duty at Edwards Airforce base when an attempt is made on Prince Sakari of Kutan, who is studying to be a jet pilot there.

Running back Larry Bronco is kidnapped on the day of an important game, but his good friend Steve Austin uses all his bionic powers to make sure Bronco makes it to the game in time.

Steve Austin goes undercover as a longshoreman to investigate the disappearance of another OSI agent.