A cowardly knight wants to rescue a lady who is imprisoned by her brother. He comes to King Arthur, for advice on how to become courageous. Merlin instills confidence in the young knight by lending him Sir Lancelot's weapon and telling him it is a magic sword.

While Sir Lancelot is on a mission for King Arthur, he is robbed and his horse is killed by a group of wild warriors.

On St. Stephen's Day, King Arthur and his knights traditionally change places for one day with the court squires. During the day, one of the ""squires-for-a-day"" steals the Sword of Excalibur.

A band of renegade knights is preying on the shepherds in the area. Sir Lancelot decides to champion the shepherds' cause, and masquerades as a shepherd to teach them how to fight the knights off.

Sir Lancelot volunteers to defend an abbey and its occupants from invading Danes.

As a punishment because he rebels at working with Merlin's pigeons, Squire Brian is sent on an errand to deliver a crate of pigeons to a neighboring castle. En route, he becomes involved with a gang of thieves who stole the precious Ruby of Radnor.

King Arthur learns that a nearby village is being terrorized by a horrible monster. Sir Lancelot is sent to investigate. He discovers that the monster is really a Viking boat, and that it's the Vikings who are doing the terrorizing.

King Arthur gives Sir Lancelot a new name and sends him off to champion a lady who is being forced into marrying an unscrupulous man.

After their father dies, two sisters inherit his tiny impoverished kingdom. Their guardian is eager to set up a rich marriage for the older girl, but she is not willing.

The Lady Lilith has been running the castle of Goodhue since it was left to her by the late Sir William , when she was 14 years old. But now Sir Liones petitions for a ruling at the court of King Arthur, quoting the law that no property can be inherited by a woman - which sets King Arthur a difficult choice to make. He suggests that the best solution would be for Sir Liones to marry the Lady, but apparently that is not possible.

While on a visit to castle Lamorack, Sir Lancelot and Merlin try to help their host when he receives a note threatening his daughter's life. Merlin learns that the note is false, and written by the girl herself in a bid for attention. Later the girl disappears. Another notes arrives and this time it's genuine.

After the death of a knight of the Round Table, a young man enters a tournament that will decide who will fill the vacancy. But the other knights object to the young contestant because of his shabby appearance. Sir Lancelot intercedes for him.

King Arthur and Sir Lancelot disguise themselves as thieves in order to test the validity of a statement by Lancelot. The knight believes that the thieves of the kingdom are thieves only because they are starving.