One of Martin's odd gadgets makes Mrs. Brown two-dimensional.
Suffering from a toothache, Martin (Ray Walston) soon realizes that his malady is more detrimental to his eyes than his jaw. And when he experiments with a cure for the aching tooth, his vision is suddenly reversed!
Martin fills in for Tim at work and gains a high profile interview.
Angling for a promotion, Tim (Bill Bixby) invites his boss Mr. Burns (J. Pat O'Malley) home for dinner. The chef for the occasion is Uncle Martin (Ray Walston), who whips up a batch of his special "Martian stew."
A pre-Gilligan's Island Alan Hale Jr. appears in this episode as Omar Keck, an eccentric millionaire who has financed an experimental missile which he intends to send to Mars.
The strength of the Earth's gravitational pull threatens to accelerate Uncle Martin's aging process. To counteract this, Martin (Ray Walston) must quickly assemble an antigravitation device.
Once again, Martin (Ray Walston) is unable to control his ability to disappear and reappear at will. This time, the source of the trouble is a bolt of lighting which struck the Martian as he slept.
A pre "That Girl" Marlo Thomas guest stars as Paula, the highly intelligent--and highly insecure--niece of landlady Mrs. Brown (Pamela Britton).
The Earthly environment is causing a vitamin deficiency in Martin. Martin needs some vitamins immediately or else he will grow weaker and weaker to the point of no return.
Anxious to return to Mars, Martin (Ray Walston) risks exposure by taking his spaceship on a short test ride. Sure enough, he is immediately spotted and classified as a UFO.
A neighborhood kid named Horace (Dennis Rush) latches onto Uncle Martin (Ray Walston) after seeing antennae sprouting from Martin's head. Thinking that the receiving device is just a toy, Horace creates his own pair--thus creating a nationwide fad.
During his latest effort to reactivate his spaceship, Martin (Ray Walston) absorbs a huge amount of electricity. As result, the town's electrical power goes totally bonkers, with TVs and radios turning themselves on and off.
Though Martians aren't supposed to experience such mundane Earthling emotions as love and jealousy, Martin (Ray Walston) is inflicted by the Green-Eyed Monster when he sees Mrs.
Cagey real estate agent Pete Dudley (Allan Melvin) fast-talks Mrs. Brown (Pamela Britton) into selling her house. This is bad news for Tim (Bill Bixby) and Martin (Ray Walston), who now must find somewhere else to hide Martin's spaceship.
Mrs. Brown (Pamela Britton) becomes snoopier than usual after taking a mail-order detective course. To practice her sleuthing skills, she immediately places Uncle Martin under secret surveillance.
Tim (Bill Bixby) is anxious to get an exclusive interview with Jakobar (Charles Maxwell), the visiting ruler of the emerging East Asian country of Kobima.
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