In the film, protagonist sorceresses Lina Inverse and Naga the Serpent arrive at a town where the art of golem-making is highly prized and become involved in the rivalry between a father and son with very different ideas on how golems should be made.

When two opposing lords seek the aid of the men against each other, Lina and Naga find themselves the central attractions in a festive duel of massive golems powered by their magic.

Two companion sorceresses and on-and-off adversaries, the overpowered Lina Inverse and the underdressed Naga the Serpent, wander into the town of Stoner, famous of its entertainment golem makers.

Lina and Naga expect to be rewarded for their not-so selfless deed, so Laia takes them to her workplace and introduces them to her father, Galia, and her brother, Huey.

Lina and Naga can easily become antagonistic, and, following an inconclusive magical duel, they end up battling it out again — but this time they are going to fight through the golems made in their appearance.

To Lina's dismay, and Granion's disappointment, the golem that was made in her image is a super deformed giant kawaii toy with funny squeaky shoes, dubbed "Piko-Piko Lina-chan" (called Lina Doll in the dub) — instead of finding her beautiful as she believed, Galia thought she was "a girl with no hips or breasts, with a face just screaming to be characterized."

Lina flees the suddenly outraged Naga and both of them get pursued by the angry lords manning the Piko-Piko Lina-chan, which soon stops when it runs out of power.

Galia and Huey resolve their differences, deciding to start making toys that are to be both cute and sexy at the same time, while the now derelict Piko-Piko Lina-chan becomes the new symbol and mascot of the entire town.

Slayers Great was theatrically released in Japan on August 2, 1997, distributed by Toei Animation and screened as a double feature along with Tenchi the Movie 2: The Daughter of Darkness.

The Video Librarian, which awarded it two-and-half stars out of four, declared it only an optional choice for anyone but Slayers fans due to its "handsome animation, but less-than-stellar storytelling.

[12] John Huxley of Homemademech called Great "a flawed but enjoyable experience," saved from mediocrity by its character design and art style,[13] also proposing Gorgeous as a better alternative to it.