With Jaime Sommers critically injured, Steve Austin races to Dr. Franklin's secret hideout to find the kidnapped Oscar Goldman. Austin plans to rescue his friend and boss despite Oscar's own orders to kill him lest he spill state secrets. The crossover starts on The Bionic Woman S02E05 Kill Oscar (I). It continues on The Bionic Woman S02E06 Kill Oscar (III).

When an object tracks across the sky and lands in a remote area in Wyoming, Oscar and Steve arrive on the scene and find that a Russian space probe built to withstand the extreme Venus environment has crash landed on earth and is out of Soviet control. It's up to Steve to try to stop the probe from destroying a nearby town.

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.

Steve Austin has met a colony of space travelers living inside a California mountain.

In an attempt to steal a top secret anti-missile device, Steve's associate and friend Major Sloan is kidnapped and replaced with a robot. Steve must discover the impostor, and keep the device from being stolen and sold to the highest bidder.

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.

Doctor Dolenz returns and kidnaps Oscar, replacing him with a lookalike robot in an attempt to steal the formula for a new energy source.

Two geologist friends of Steve Austin disappear in Californa while placing earthquake sensors in the woods.

With time running out, Steve must do anything he can to disable the Russian space probe in spite of the fact that it is virtually indestructible and has numerous inventive capabilities that it uses as weapons.

Steve Austin becomes a suspect after series of burglaries that can only be accomplished with bionic strength are committed. As Austin begins to have vague memories of his encounter with Bigfoot, he is approached by Gillian, one of the alien travelers. She explains that one of her own, Nedlick, has formed a splinter group intend on world domination and is now using Sasquash to commit robberies in order to gain wealth. The crossover continues on The Bionic Woman S02E01 The Return of Bigfoot (II).

The daughter of Steve's friend, David McGrath, is kidnapped in order to force David to kill Steve. When the attempt on Steve fails, David confesses to Steve who then must rescue her.

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 enters a time warp while on an orbital mission, hurling him six years into the future. Upon landing, the authorities arrest him for treason, believing he defected to Russia and was brainwashed into thinking the time warp occurred. Steve has to both prove his innocence and figure out how to get back to his own time.

A terrorist steals a Russian rocket launcher and American missilse and plans to hold both countries hostage. Steve is sent along with a beautiful Russian agent to stop the terrorist, but his opposite number has orders to dispose of him and bring back the missiles to her superiors.

Steve is arrested when an assassin he helped send to prison seeks revenge by framing him for murder. Steve escapes from the police and must find the assassin before the police find Steve. Lee Majors plays a comic bit part as an elderly Electrical Store Clerk credited as L Majors.

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.

Steve goes undercover to thwart a plot by disgruntled ex-military men to steal a new missile.

When OSI's communications chief is accused of spying, Steve attempts to prove his innocence and discovers tampered computer memory. He is led to suspect a computer dating service is behind the ilegal activity, but doesn't realize a computer itself has gained sentience and plans to stop Steve any way it can.

Steve teams with the owner of the computer dating service to put a stop to her now-sentient computer. After escaping a computer-arranged assassination, Steve finds himself in a mental facility after his medical records are altered. While the computer attempts to have everyone who knows about it killed, Steve must find a way to escape and stop the computer before it's too late.

When a plane carrying an atomic warhead crashes on a South Pacific island, Steve is sent to retrieve it, but finds that an ex-Japanese Zero pilot, Kuroda, has taken it to his home. Steve must successfully navigate his way through the booby-traps and get the warhead before a rogue guerrilla group does.

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.

Oscar and Rudy are performing a test on Barney Hiller to see if his bionic power can be turned on and off again when needed.

Somebody inside the OSI has been leaking top secret information and the trail leads to janitor Clark O'Flaherty.

O.S.I. needs to get a stolen top-secret codebook back from elusive criminal and club owner Mark Wharton.

A new, deadlier Venus probe is tested in a desolate area as a demonstration for Steve and Oscar, but a threat to Oscar to either hand over nuclear weaponry or see the probe set loose on the public forces Steve to find a way to stop the probe, even though it outmatches him in many ways.