Martha is blamed for ruining a birthday cake, though she proclaims her innocence; Martha and Helen discover a plot to rob a jewelry store, but their initial suspects turn out to be police officers.

Martha faces off against a burglar in the opener of this animated series, in which the title character, a dog, gains the power of speech after eating alphabet soup. Then Martha becomes the host of a radio show and offers her advice on various issues. Based on the book series by author Susan Meddaugh.

Large pickles are discovered in town, which Martha and her friends fear are aliens.

To cheer up Helen, who's down in the dumps after not winning an art competition, her mother decides to bake her a cake. But when a flower order takes priority, Martha and Skits step in to finish the job. Then bath-hating Martha asks TD's father to create a perfume to hide her pungent doggy scent.

Martha tries to be a hero, and she learns a lesson about true courage; Martha and Helen plan a camping trip, then hear a tale of a mythical monster that lives in the woods.

Martha visits a farm with her family. She tries to help with chores, but soon doubts her ability to be a farm dog. Also: Martha runs away from home after a fight with Helen and gets a job as a...telemarketer.

Martha accidentally gets involved in a robbery and she hides the evidence of her actions. Then the thieves try to recruit her for another job. Also: Martha investigates a dog-obedience school when she thinks the students turn out to be too perfect.

Martha and Helen try to tame a nasty new dog in the neighborhood; and Martha is invited to a talent show, but the host has an ulterior motive for inviting her.

Helen gets laryngitis, so Martha tries to take care of her, but Martha's efforts cause havoc in their home; Truman looks forward to a whale-watching excursion but must overcome his fear of getting seasick.

Martha tries to persuade Granny Flo to advertise the soup company on a popular TV show to increase sales; a con artist tries to take Martha by posing as her long-lost owner from Poland.

The family takes care of a neighbor's dog, but the pooch turns out to be a manipulative creature that gets Martha into trouble; and Martha wins a trip to an inn, which has a no-dogs policy.

Martha sets out to become a firehouse dog, and she learns how difficult the job can be; when large pickles are discovered in town, Martha and her friends fear are aliens.

Alice is afraid to express an interest in ballet because of Ronald, who she thinks will tease her; Martha's attempt to become an agility dog flops.

Martha loses the ability to speak after the soup company cuts down on the number of letters in each can of its product; Helen must train Skits to behave or he'll become an outdoor-only dog.

Martha has an idea for an adventure story, so Helen and her friends write it for her, adding their own input along the way. Also: Martha meets a TV star who isn't as courageous as she thought.

Martha is upset when Alice and Helen make a fuss about a kitten; Alice can't believe Truman can dislike ice cream without ever having tasted it.

Martha's canine-human speech skills prove a big plus when she becomes a veterinary assistant, until she helps treat a puppy that speaks gibberish. Meanwhile, when Carolina starts a newspaper, TD tries to become an investigative reporter, but ends up a headline instead.