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.

Sir Lancelot and his squire Brian go to the aid of King Boltan, who swears that ghosts have abducted his daughter.

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 young knight's prospective father-in-law has been kidnapped and is being held prisoner. Sir Lancelot agrees to help the knight rescue the man.

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.

A woman claiming mystical powers has convinced King Bors of Sagitaw that she is working evil against him. Sir Lancelot enlists Merlin's aid against her powers.

A young girl asks Sir Lancelot's aid. An evil monarch, King Meliot, is selling the young men of the village of Cheddar into slavery.

Sir Richard of Taunton is attacked and beaten by three men and left for dead. His uncle plans to substitute his son, Richard's double, and gain control of the family estate. Lancelot is suspicious and starts investigating.

While preparing for knighthood, Squire Brian uncovers a plot by King Marhaus. The king plans to break a treaty and take over a village.

While visiting Mortaise Castle, Queen Guinevere is presented with a priceless jewel from the Rajah of Kaipur. Shortly afterward there is a fire, and during the excitement the jewel is stolen.