Please watch the video!! --> http://www.youtube.com/watch?v=KLI46yMdtmU
After the King of England, Uther Pendragon, dies, the "Sword in the Stone" appears in London with an inscription proclaiming that "Who so Pulleth Out This Sword of this Stone and Anvil, is Rightwise King Born of England". Nobody can remove the sword, which is soon forgotten, leaving England in a Dark Age.
Years later, Arthur (a.k.a. Wart), a 12-year-old orphan training to be a squire, accompanying his older foster brother Kay on a hunting trip, accidentally prevents Kay from shooting a deer. Wart goes to retrieve the arrow despite of Kay's warning that the forest is, "swarming with wolves!", and falls into Merlin's cottage. Merlin declares himself Wart's tutor and the two return to Wart's home, a castle run by Sir Ector, one of Uther's knights. Ector does not believe in magic, so Merlin creates a "wizard blizzard", which convinces him. When Ector will not allow Merlin to tutor Wart, Merlin magically disappears, which persuades Ector to let Merlin stay. Ector's friend, Sir Pellinore, arrives with news about the annual jousting tournament to be held on New Year's Day in London. The winner will become king.
Merlin transforms Wart and himself into fish and they swim in the castle moat. Wart is attacked by a pike and saved by Archimedes, Merlin's owl. Wart is sent to the kitchen as punishment after he tries relating his lesson to a disbelieving Ector. Merlin enchants the dishes to wash themselves, then takes Wart for another lesson and turns them into squirrels. Wart almost gets eaten by a wolf, and is saved by a female squirrel who falls in love with him. After they have returned to human form, Ector accuses Merlin of using black magic on the dishes. Wart defends Merlin but Ector will not listen, punishing Wart for "popping off" by giving Kay a different squire, Hobbs.
For his third lesson, Merlin transforms Wart into a sparrow and Archimedes teaches Wart how to fly. Wart is attacked by a hawk and flies down the witch Madam Mim's chimney. Mim's magic uses trickery, as opposed to Merlin's scientific skill. Mim turns into a cat and chases Wart around her cottage attempting to destroy him. She catches Wart, but he pecks her on the nose, turning her back to normal. Merlin challenges Mim to a Wizards' Duel, in which the combatants change themselves into various non-imaginary animals to destroy one another. Mim breaks the rules by disappearing, and eventually transforms into a dragon. Merlin transforms himself into a germ called "Malignalitaloptereosis" and infects Mim, effectively defeating her.
At Christmas, Kay is knighted but Hobbs comes down with the mumps; Ector reinstates Wart as Kay's squire. Merlin is disappointed that Wart still prefers war games to academics. Wart tries to explain that he cannot become a knight as he is an orphan; squire is the best position he can attain. This aggravates Merlin, who transports himself to 20th-century Bermuda.
Ector, Kay, Pellinore, Wart and Archimedes travel to London for the tournament. Wart realises he has left Kay's sword at the inn, which is closed because of the tournament. Archimedes notices a sword in a stone in a nearby churchyard. Wart pulls the sword from the stone, unwittingly fulfilling the prophecy.
When Arthur returns with the sword, Ector and Sir Bart recognize it as the Sword in the Stone and the tournament is stopped. Demanding that Arthur prove he pulled it, Ector replaces the sword in its anvil. None of the other men can remove it, but Wart pulls it out again. The knights all proclaim, "Hail!! King Arthur!!" as the crowd kneels.
Arthur, crowned king, sits in the throne room with Archimedes, feeling unprepared to take the responsibility of royalty. Overwhelmed by the cheering crowd outside, Arthur calls out to Merlin for help, who is elated to find that Arthur is the King that he saw in the future. Merlin tells the boy that he will lead the Knights of the Round Table, becoming one of the most famous figures in literature and even in motion pictures.