Through a textual prologue the audience is told that Snow White is a princess living with her stepmother, a vain and wicked witch known only as the Evil Queen. Fearing Snow White's beauty, the Queen forced her to work as a scullery maid (with Sora and the others helping) and would daily ask her Magic Mirror "who is the fairest one of all". The mirror would always answer that the Queen was, pleasing her.
At the film's opening, the Magic Mirror informs the Queen and Ratigan that Snow White is now the fairest in the land. The jealous Queen and Ratigan orders the huntsman to take Snow White and Sora and the others into the woods and kill them, demanding that he bring them the dead girl and our heroes' heart in a jeweled box as proof of the deed. The huntsman, unwilling to harm Snow White and the others, instead spares their lives, and urges them to flee into the woods and never come back, bringing back a pig's heart instead.
Lost and frightened, the princess and our heroes are befriended by woodland creatures who lead them to a cottage deep in the woods. Finding seven small chairs in the cottage's dining room, Snow White, Sora, Ash, and their friends assumes the cottage is the untidy home of seven children. It soon becomes apparent that the cottage belongs instead to seven adult dwarfs, Doc, Grumpy, Happy, Sleepy, Bashful, Sneezy, and Dopey, who work in a nearby mine. Returning home, they are alarmed to find their cottage clean and surmise that an intruder has invaded their home. The dwarfs find Snow White and the others upstairs, asleep across three of their beds. Everyone awakens, introduces themselves, and all of the dwarfs except Grumpy (who is suspicious, but eventually warms up to her) welcome them as a house guest after they learn she can cook. Snow White begins a new life cooking and keeping house for the dwarfs.
The Queen and Ratigan eventually discovers that Snow White and our heroes are still alive when the mirror again answers that Snow White is the fairest in the land. Using magic to disguise herself as an old hag, the Queen goes to the cottage with Ratigan while the dwarfs are away and tricks Snow White into biting into a poisoned (magic wishing) apple that sends her into a deep sleep, which can only be broken by love's first kiss. At the same time, Ratigan captures Sora and the others and places a trap if they try to escape. The trap however gets backfired as an object blasts the trap to open the cage and Sora and the others are free. The vengeful dwarfs, alerted by the woodland animals who recognized the Queen and Ratigan, joins Sora and the others and they chase the villains up a cliff and trap them. The Queen tries to roll a boulder over them but Pikachu's thunderbolt and Donald's thunder magic strikes the cliff she and Ratigan are standing on and they fall to their death.
Sora, Ash, their friends, and the Dwarfs return to their cottage and find Snow White seemingly dead. Unwilling to bury her body out of sight in the ground, they instead place her in a glass coffin trimmed with gold, and eternal veil, in a clearing in the forest. Together with the woodland creatures, they keep watch over her body through the seasons.
After several seasons pass, a Prince who had previously met and fallen in love with Snow White, learns of her plight and visits her coffin. Captivated by her beauty, he kisses her, which breaks the spell and awakens her. Sora, the others, the dwarfs, and animals all rejoice as Snow White and the prince ride off to the Prince's castle.
- Ash Ketchum, Pikachu, Misty, Togepi, Brock, Professor Ratigan, and Fidget guest star in this Motion Picture.
- Maleficent makes a cameo in this film when Ratigan makes a call to her about the progress.
- It is revealed that E-123 Omega let Sora and his friends escaped Ratigan's trap, although he was never seen in the film.
- Snow White is one of the Seven Princesses of Hearts in Kingdom Hearts.
- Sora, Donald, & Goofy have met Snow White in the first Kingdom Hearts, while Sora sealing the Keyhole in Hollow Bastion by defeating the Behemoth Heartless
- Kingdom Hearts and Snow White were both made by Disney.