Reporter Tim O'Hara, while covering a flight of the Air Force X-15, finds a spaceship that contains a genuine martian. The martian is a professor who specializes in the planet Earth and now has to rep…

There is dual girl trouble in the O'Hara household. George, the dog who Tim is looking after for Mr. Burns, is in love with Chloe, the dog from next door. Through trying to get George and Chloe togeth…

Martin comes down with a common cold, which is not so common but rather debilitating for Martians. Meanwhile Tim is sent to Trimbles Department Store to review their outer space exhibit. Trimble, a ma…

Martin reads about a $2 billion American space program, a program he knows is doomed for failure. Not wanting to see the American government waste $2 billion, Tim writes himself a fake letter to the n…

Renowned scientist Professor Newton Jennings posits that life no more advanced than amoebas or jellyfish can exist on Mars. Martin helps Angela write a report refuting Jennings claims, which quickly g…

To get some rarefied air, Martin goes atop a water tower. Passersby, including the police, think he's a jumper and he's promptly sent to the psychiatric ward of the hospital. Martin thinks he can quic…

Martin allows himself to experience an emotion foreign to Martians: love at first sight. He falls hard for Peaches Ancream (Kathie Brown), that being her real given name since her father had a sense o…

Tim talks Martin into temporarily giving him a Martian power. Martin decides to give him the power of levitation for a 24 hour period. When he thinks the power practically useless beyond performing me…

When the junk men come by, they mistakenly empty Martin and Tim's garage instead of Mrs. Brown's, and in doing so take Martin's space ship. Mrs. Brown has no idea the name of the junk yard, but there …

When Martin almost gets a parking ticket, Tim thinks it might be a good idea if Martin legitimizes his Earthly driving by getting a driver's license. Down at the Department of Motor Vehicles, finger-p…

Martin needs the hardest substance possible to repair his spaceship, the substance he has in mind is silibalt, an alloy of silicone and cobalt but one that has not yet been invented on Earth. To make …

Tim is pursuing who seems to be the unattainable Cynthia Parker. Through reading her mind, Martin finds out that Cynthia is passionate about the classical arts whether it be music, literature or art, …

The O'Hara's have new neighbors, the Richmonds, within the family being young Stevie and his grown up sister Jennifer. The foursome go on a picnic to Sunset Mountain, since Martin needs to pick up som…

Tim's cousin Harvey is coming for a visit, which means Martin is going to have to go into hiding since Harvey would know that Tim has no Uncle Martin. And they have to keep Mrs. Brown away from Harvey…

The stupidest idea Martin has heard of since he's been on Earth: Rosemary Willis leaving her cat, Max, $650,000 in her will. Morton Beanbecker, the lawyer for the estate, is threatening Tim with a law…

Martin can make it back to Mars since Mars has deviated from its regular orbit temporarily and is thus closer to Earth than usual. Martin has a 10 hour window of opportunity. Just as he is about ready…

Something is causing Martin's metabolism to go haywire. In succession, he loses control of his levitation finger, he magnetizes his clothing, he levitates, he becomes electrically charged, he shrinks …

Martin and Tim are on their way to interview Professor Eugene Downey, the foremost expert on rocket fuel - Martin thinks the professor can assist in getting him back to Mars - when Martin is hit on th…

At the museum, Martin discovers that the long-time curator, Wilbur Canfield, is very unhappy. He has just acquired a new expensive Egyptian piece for the museum, but the museum's board is questioning …

Martin wants to help Tim with the household expenses, and without a money earning activity, decides to sell art he's currently painting to relive boredom. Martin can paint in the style of any famous a…

The Inter-Galaxy Corporation is launching a rocket to either Mars or Venus. Martin needs to convince them to choose Mars, so that he can stowaway and get home. J.M. Buckley, Inter-Galaxy's President, …

Tim discovers that Martin's antennae can pick up radio and television signals and other things. While Martin's asleep, Tim tunes him into a police frequency hoping for a newspaper scoop.

After Martin makes Tim miss a deadline, Martin decides to help Tim get an exclusive interview. Jakobar, the rogue leader of Kobima, is the story's subject matter. Martin is a legend in Kobima and has …

Mrs. Brown is taking a course on how to be a private detective, and her first assignment is to prepare a dossier on an unsuspecting person. Her choice of subject is Martin. Of course, Martin knows wha…

Pete Dudley, a real estate salesman, convinces Mrs. Brown that she should sell her ramshackle of a house, which causes a problem for Tim and Martin, especially in hiding the spaceship. Dudley already …

Since Tim is unavailable for an outing, Martin asks Mrs. Brown out on a "date". Mrs. Brown herself can't make it since surprisingly she already has a date for that evening. Martin feels dejected, but …

Martin needs to electrically charge himself for his trip back to Mars. However he overcharges himself. He needs to rid himself of the excess electricity, and when he initially tries to discharge it, h…

Martin can't work on his spaceship because neighborhood boy, won't leave him alone. Martin is so stressed that his antennae get stuck in the up position and he loses some of his powers.

Martin needs to fly his space ship, which is deteriorating due to inertia. Tim's fear is realized: Martin's flight is spotted as a UFO. Martin needs to take another flight, but Mrs. Brown calls in the…

The Earthly environment is causing a vitamin deficiency in Martin. He draws on energy and vitamins from everything and everyone around him. The effect on things is for them to go haywire. And if peopl…

Mrs. Brown's niece, Paula Clayfield, comes for visit. A former child prodigy, Paula has always relied on her brains to mask insecurities in her personal appearance. Despite her Plain Jane looks, Paula…

During an electrical storm, Martin gets an affliction called popsy, which causes him to appear and disappear uncontrollably. With Tim's help, Martin needs to long ground himself electrically to cure t…

Martin finds that he is prematurely aging due to the increased gravity on Earth compared to Mars. Thus he goes through some anti-gravity therapy, which in turn causes havoc for those around him.

Martin convinces Tim to use his connections as a reporter to get Martin a tryout as the astronaut for a Mars destined rocket, privately financed by Omar M. Keck. Despite a slew of younger stereotypica…

Tim and Mr. Burns' nephew, Freddie Carson, are in the running for promotion to journeyman reporter at the newspaper. After finding out that Mr. Burns is a gourmet, Martin decides that a way to swing t…

Tim gets mad at Martin for "disappearing and spying" on him while he has a date at the apartment. To make up for this, Martin covers for Tim when he goes missing from the office and Mr. Burns calls th…

A toothache of his "eye" tooth causes "eye" problems for Martin: he can't see. Tim takes him to see his dentist, although Martin doesn't have typical human teeth. He needs dental expertise and some de…

Tim learns about Martian dreams when he sees three girls dancing around the dozing Uncle Martin.

Martin's present to Tim: a memory machine.

Martin can't decide whether or not to return to Mars.

Tim diverts Mrs. Brown's attention while Martin returns the spaceship to the garage.

When a phone wire falls on Martin, he starts getting incoming calls.

Despite Martin's warning, Tim brings an ESP expert home.

Martin rocks the music world with his folk singing.

To help Tim meet expenses, Martin tutors an obnoxious child.

Martin's duplicating machine creates another Mrs. Brown.

A young boy hijacks Uncle Martin's spaceship.

A rainmaker offers his services during a dry spell.

While Uncle Martin is asleep, his alter ego appears a lookalike swinger named Pierre.

A rabbit eats a Martian vitamin pill and becomes 6 feet tall.

Tim's enemies increase rapidly after he basks in Martin's benevolence bulb.

The Case of the Missing Sleuth: Detective Brennan (Alan Hewitt) dissolves himself with Martin's molecular separator.

Tim's great-uncle demands to know where Martin fits on the family tree.

Martin suffers from temporary amnesia attacks, brought on by Martian hay fever.

To prove that childhood is unnecessary, Martin adopts an orphan girl.

Martin loses control of his power to move large objects.

Martin burns (and becomes transparent) each time Mrs. Brown plays her violin.

Martin's thrift lessons turn Mrs. Brown into a miser.

Tim tinkers with Martin's ship, shrinking it to the size of a toy.

Martin's invisibility mechanism goes haywire everything he touches disappears.

Color Martin green when he sees Brennan flirt with Mrs. Brown.

An experiment goes haywire, turning Martin into a walking magnet.

Tim is placed on the Teacher of the Year selection committee.

Martin feels that his youth is fading and asks Tim to help him rejuvenate himself with the aid of Black Light. However, things go awry when Tim screws up the process and Martin gets turned into an inf…

On Martian Mother's Day, Martin spots his mother's lookalike.

Mrs Brown's purchase of a new electric bed leads her to believe she has developed ESP as she can hear Martin's thoughts.

Tim accidentally gets mixed up with a fleeing secret government agent who is involved with a deadly organization called CRUSH. This leads Tim to go undercover with Uncle Martin by his side helping him…

Despite warnings, Tim touches Martin's antennae and disappears.

In the desert, a gun-wielding camper spots Tim and Martin working on the spaceship.

Uncle Martin mistakes a hobo, Shorty Smith for a Martian Scout and brings him home. Shorty quickly becomes accustomed to the comforts of life and when Martin learns the truth, Martin and Tim have a h…

A Martian drug turns Mrs. Brown into a piano virtuoso.

Mrs. Brown is deluged with suitors after dousing herself with Martian "irresistible spray."

In Mexico, Tim and Martin witness the opening of an ancient box.

The time machine takes Tim and Martin back to 13th-century England.

One of Martin's odd gadgets makes Mrs. Brown two-dimensional.

A time machine plummets Tim and Martin back to the Gold Rush Days.

Tim and Martin search for their time machine.

Tim and Martin return, via time machine, to early Hollywood where Martin once starred as a sheik.

Uncle Martin captures a surprising photo of Tim using his fortune-telling camera. Both are astonished when the image reveals Tim at the altar with an unidentified woman whose back is turned to the cam…

Martin's latest machine effects a mind swap with Mrs. Brown.

Tim's I.Q. soars when he downs Martin's brain-power pills.

A mineral deficiency gives Martin the Midas touch everything he touches turns to gold.

Uncle Martin, packed in a tiny bottle, is bound for the Middle East.

Martin's benevolence-inducing light has an unusual effect on Brennan.

Martin accidentally pulls an alien spaceship out of the sky.

The time machine brings Tim, Martin and Mrs. Brown face to face with Jesse and Frank James.

Disguised as a 70-year-old, Martin becomes a night watchman.

Double trouble - Martin's duplicating machine creates two Tims.

A Martian pill turns Mrs. Brown into a crusading crime-fighter.

Tim is arrested for theft when he's forced to help two jewel robbers.

Rumors spread that Martin is working on a secret Government project.

The unexplained presence of "Uncle" Martin jeopardizes Tim's claim to an inheritance.

An invisible Martin is photographed capturing an escaped criminal.

A short circuit in Martin's transmitter puts him and Tim on nationwide TV.

Martin helps Mrs. Brown's brother build a robot that does household chores.

In a department store, Martin is frozen into a mannequinlike pose.

Tim is kidnapped by sinister CRUSH agent Butterball.

A gypsy curse causes Mrs. Brown to drop anything she picks up.

Trouble begins when Martin's Martian nephew lands on Earth and tells everyone where he's from.

Martin turns himself into a liquid and is lapped up by Tim's dog.

Trouble begins when Tim contracts a Martian virus.

Martin's personality altercator turns Mrs. Brown into a thief.

Martin summons Leonardo da Vinci for help in fixing his spaceship.

A mosquito bite causes Martin to act like a race horse.

A beam from Martin's regenerator gives Mrs. Brown power to foresee the future.

Martin's molecular reassembler turns a squirrel into a human.

Tim tampers with history when he goes back in time and talks the Indians out of selling Manhattan.