Reporter Tim O'Hara, while covering a flight of the Air Force X-15, finds a spaceship that contains...

There is dual girl trouble in the O'Hara household. George, the dog who Tim is looking after for Mr....

Martin comes down with a common cold, which is not so common but rather debilitating for Martians. M...

Martin reads about a $2 billion American space program, a program he knows is doomed for failure. No...

Renowned scientist Professor Newton Jennings posits that life no more advanced than amoebas or jelly...

To get some rarefied air, Martin goes atop a water tower. Passersby, including the police, think he'...

Martin allows himself to experience an emotion foreign to Martians: love at first sight. He falls ha...

Tim talks Martin into temporarily giving him a Martian power. Martin decides to give him the power o...

When the junk men come by, they mistakenly empty Martin and Tim's garage instead of Mrs. Brown's, an...

When Martin almost gets a parking ticket, Tim thinks it might be a good idea if Martin legitimizes h...

Martin needs the hardest substance possible to repair his spaceship, the substance he has in mind is...

Tim is pursuing who seems to be the unattainable Cynthia Parker. Through reading her mind, Martin fi...

The O'Hara's have new neighbors, the Richmonds, within the family being young Stevie and his grown u...

Tim's cousin Harvey is coming for a visit, which means Martin is going to have to go into hiding sin...

The stupidest idea Martin has heard of since he's been on Earth: Rosemary Willis leaving her cat, Ma...

Martin can make it back to Mars since Mars has deviated from its regular orbit temporarily and is th...

Something is causing Martin's metabolism to go haywire. In succession, he loses control of his levit...

Martin and Tim are on their way to interview Professor Eugene Downey, the foremost expert on rocket...

At the museum, Martin discovers that the long-time curator, Wilbur Canfield, is very unhappy. He has...

Martin wants to help Tim with the household expenses, and without a money earning activity, decides...

The Inter-Galaxy Corporation is launching a rocket to either Mars or Venus. Martin needs to convince...

Tim discovers that Martin's antennae can pick up radio and television signals and other things. Whil...

After Martin makes Tim miss a deadline, Martin decides to help Tim get an exclusive interview. Jakob...

Mrs. Brown is taking a course on how to be a private detective, and her first assignment is to prepa...

Pete Dudley, a real estate salesman, convinces Mrs. Brown that she should sell her ramshackle of a h...

Since Tim is unavailable for an outing, Martin asks Mrs. Brown out on a "date". Mrs. Brown herself c...

Martin needs to electrically charge himself for his trip back to Mars. However he overcharges himsel...

Martin can't work on his spaceship because neighborhood boy, won't leave him alone. Martin is so str...

Martin needs to fly his space ship, which is deteriorating due to inertia. Tim's fear is realized: M...

The Earthly environment is causing a vitamin deficiency in Martin. He draws on energy and vitamins f...

Mrs. Brown's niece, Paula Clayfield, comes for visit. A former child prodigy, Paula has always relie...

During an electrical storm, Martin gets an affliction called popsy, which causes him to appear and d...

Martin finds that he is prematurely aging due to the increased gravity on Earth compared to Mars. Th...

Martin convinces Tim to use his connections as a reporter to get Martin a tryout as the astronaut fo...

Tim and Mr. Burns' nephew, Freddie Carson, are in the running for promotion to journeyman reporter a...

Tim gets mad at Martin for "disappearing and spying" on him while he has a date at the apartment. To...

A toothache of his "eye" tooth causes "eye" problems for Martin: he can't see. Tim takes him to see...

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 mole...

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 Bl...

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 hea...

Tim accidentally gets mixed up with a fleeing secret government agent who is involved with a deadly...

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...

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 astonishe...

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.