It follows the adventures of Dorothy, an orphan girl living out in the gray prairies of Kansas with her Aunt Em, her Uncle Henry and her dog Toto.

Dorothy is given the Silver Shoes of the Wicked Witch of the East and sent off along the Yellow Brick Road towards the Emerald City to see the Wonderful Wizard of Oz in hope of getting back to Kansas.

The group then enters a dark forest and become trapped at the edge of a steep canyon, while being chased by the Kalidahs (animals with the bodies of bears and the heads of tigers).

A deadly field of poppies puts Dorothy, Toto and the Lion to sleep, but they manage to escape with the help of the Mouse Queen, and her subjects, whom the Tin Man rescued from a wildcat.

The Wizard grants an individual audience to each of them in a dark reception hall and changes his appearance with each one of them—he meets Dorothy, as a Giant Head; the Scarecrow, as a lovely angel-like lady; the Tin Man, as a terrible beast; and the Lion, as a ball of fire.

As the group near the witch's castle, the Winged Monkeys attack who manage to destroy the Scarecrow (by emptying his body) and the Tin Man (by dropping him from a great height).

As the group spends a few days relaxing in the Witch's castle with their new Winkie friends, they are visited by a boy named Tip and his guardian, Mombi.

Summoning them, Dorothy is told they cannot cross the boundaries of Oz and has wasted her last wish but it is suggested she visits Glinda, the Good Witch of the South.

Useless to her now, Dorothy happily agrees and Glinda tells her that she intends to use it to return Scarecrow, Tin Man and Lion to their respective kingdoms so they don't have to face the dangers they encountered travelling to her again.

After the Gate-Guardian is defeated by Jinjur's army, Dorothy and Tip warn Scarecrow of the Invasion, and the friends make their escape, just as Mombi arrives at Emerald City.

As Mombi joins General Jinjur in her plot to overthrow Oz, the friends go on to the West (despite the Saw-Horse's broken leg accident) and ask the Tin Man for help.

After more magic tricks, like a giant cliff-like wall and a circle of fire, the friends finally return to Emerald City and find it in bad shape—all the men are doing the hard work while the women can do whatever they want.

Jack uses the Wizard's old tricks to distract and scare the girls as his friends put together and bring to life a Moose-Bed (a canopy bed with a stuffed Moose head attached).

But Mombi causes the Moose-Bed and his passengers to drift away into a valley of mist, mountains and cliffs, where they are encountered, captured and eventually manage to escape one of several giant dragons.

Although she is willing to help free the Emerald City of Mombi and Jinjur, Glinda informs the group she will not restore Scarecrow as king having recently discovered that his claim to the throne is illegal.

She tells everyone that the King of Oz died just before the Wizard arrived and it was believed that he had left no heir to the throne, bringing to an end the royal lineage.

However Glinda has discovered that he did father a child just before he died; a girl named Ozma who disappeared soon after as she was removed by the Wizard due to him not wishing to lose the power he had gained by becoming ruler.

Scarecrow is not upset about no longer being king, having quickly tired of the position and the group decides to return to the Emerald City (accompanied by Glinda) to oust Jinjur and find out from Mombi what she did with Ozma.

Upon returning to the Emerald City, Glinda frightens Jinjur and her army into surrendering and orders Mombi to cooperate with Dorothy and her group before leaving while the Gump and the Sawhorse are left at the gate.

When Scarecrow arrives, he announces that Jinjur will soon no longer rule the city but he also renounces the throne, informing then all that Princess Ozma is alive and he intends to organize a search for her.

The group crosses a dangerous Desert, which consists of a sandstorm, funny looking plants, a giant beetle and only one oasis in the entire sandy waste.

While the group decides to rest in the ship for the night, they meet Billina, a Talking Hen (who acts like a Rooster), who was once the Nome King's chicken.

But when they try to leave, they end up getting trapped where Nome King and Kaliko scare them with pouring giant-tubs of lava, until they see and are terrified by the egg which Tik-Tok has secretly hidden.

With the Prince of Ev, the group tries to leave, but the Nome King isn't going to make it easy for them—he tries to drown them in a river of lava and catapults them with giant boulders.

In the meantime, Scarecrow discovers a small box in the Wizard's Chamber which transports Dorothy and Ozma into a world where they meet Miss Cuttenclip the Paper Queen and Mr. Fuddles the Puzzle Man who creates a door which returns the girls back to Oz.

As everybody gets everything ready, Dorothy and Ozma practice her magic powers by making a Giant Paper Bird come to life, so that they can ride it in the sky whenever they wish.

After Dorothy manages to find the Winkie Timsmith to help her rescue Tin Man from the Growleywog, Guph sneaks into the Emerald City, going along the many stairs and doors, only to lose his memory in the Palace.

Dorothy bids goodbye to her friends promising to return soon, and is then sent back to Kansas where she reunites with Aunt Em, Uncle Henry and Toto.

To give it a secondary market, episodes of the show were later re-edited into four films and released in the U.S. on VHS and Laserdisc (and later DVD), in which major plots and storylines are removed in favour of cutting each story-arc down into their retrospective book-canon story.

It has also been reported to be seen early-morning on This TV's Cinar children's Wildbrain programming block Cookie Jar Toons, which has since dissolved due to the breakup of the two companies.