Enter a world of fear, mystery, and the deadliest black magic. Nightmare creatures and flesh eating dragons roam the kingdom of the wicked Prince John, destroying all those who cross their path. Tyranny and oppression rule, and ancient evil reigns over the helpless people of the towns and villages. Only the glint of fire on the sword of the Chosen One can overthrow the deadly ruler and restore the throne to its rightful owner.

In a kingdom ruled by spell books and wiked spirits, King John rules while England's true leader, King Richard is held prisoner. Richards only hope in the return of the Darkest Knight the chosen warrior in the battle against evil. Together with Rebecca the healer and Odo the magical wizard's apprentice, he braves all of ancient England's perils to bring the rightful king back to the throne.

In the direct-to-video medieval adventure Darkest Knight III: The Ultimate Sword, the vile King John has usurped the throne and deposed the rightful ruler, the fair and just King Richard. The hope of the kingdom lies in the hands of one warrior - The Darkest Knight - and his attempts to free Richard from confinement persist. But matters grow exceedingly grim when the all powerful Ultimate Sword falls into the hands of John's men - and threatens to tip the balance of power forever.