A village on the outskirts of Sherwood Forest is regularly raided by a horde of Mongols. Robin and his band rescue a maiden from the village who has been kidnapped, angering the Mongols. The village elders refuse Robin's help in fighting back against them, fearing too much bloodshed, but the younger citizens are prepared to fight for their freedom.

A band of Vikings capture Prince John, to hold him for ransom, and Robin, who is out hunting with Little John. Robin and his men enable Prince John's escape, but will he live up to his promise to pardon Robin and his men?

On Prince John's orders, Captain Delouche, an evil knight armed with magic, impenetrable armor, rounds up many young women from the Sherwood Forest area for a beauty contest, with marriage to Delouche for the winner and a sacrificial death for the loser. The abducted women include Little John's sister, Natalie. The magic armor can only be defeated by the Golden Arrow, which Robin has to take from Prince John's castle, and use against Delouche, to rescue the maidens.

The Saxon Lord Sedgewick owes a large amount in taxes to Prince John, and if he doesn't pay, his granddaughter, Lady Pamela, will have to marry Sir Gilbert. So she requests Robin's help. Robin enters a contest, The Race Against Death, devised by Prince John, with a huge sum of money as prize, but finds it is rigged against him. Robin ends up needing to be rescued by his men from inside the castle.

Baragon is an evil creature, more than 300 years old, who has to keep drinking the blood of the innocent to keep him young and strong. To break out of this cycle, he makes a pact with the dark lord Orone to deliver Robin to him. His assistant captures members of Little John's family, and then Robin himself. Marion has to lead their rescue from the castle.

Marion sets out to save her young cousin, Iris, from a marriage arranged by her evil sister-in-law, Lady Isabelle, to Lord Garth. Isabelle has told Iris that her intended, Thomas of Glockshire, was killed in the crusades, but he is actually on his way back. He meets Robin and his men, who are on their way to help Marion. Marion saves Iris, and returns to Sherwood, only to find that Robin and his men are now catives in Isabelle's castle, and Marion must now return there to rescue them.

Robin meets a young boy, Patrick, who leads a group of orphans on the run from Prince John's soldiers. On taking the boy back to camp he discovers that he is a real hand full. The boy knocks Robin unconscious, and escapes to reassemble his group in the woods. While unconscious, Robin recalls his encounter with the magician, Olwyn. He was then about the same age as Patrick, and also running for his life in the forest from the men who killed his father, the Earl of Locksley, and sacked their home, leaving Robin a penniless orphan. Olwyn offered Robin refuge, and told him he was the chosen one. Friar Tuck convinces Patrick to give all his booty to Robin's cause.

Three beautiful, evil witches take Little John captive, and make him their slave. Robin's band cannot breech the catacombs of the abbey where the witches have taken him, because of the powerful magic they practise. Robin uses a magic potion from Friar Tuck to fake his own death, knowing that his evil Aunt Alice, the Abbess, will entomb him in the family crypt inside the abbey. He thus gains entry to rescue Little John and vanquish the witches.

An evil warrior from the Middle East seeks to make Marion part of his harem.

Robin goes to the fiftieth birthday party of his step-mother, where he encounters an old girlfriend. But a band of thieves enter the castle and interrupt the festivities. They round up the guests and steal all their money and trinkets. Robin is seriously wounded in the battle to recover the stolen items. Knowing the castle well, he relies on his cunning to separate the thieves, and lay traps for them in the rooms they find themselves locked in. But Robin faces his biggest battle high on the castle walls.

The God of Healers sent her young daughter, Gwyneth, from Avalon to live amongst mortals many years ago. The beautiful young healer must return home before her twenty-first birthday, or all who have been healed by her hand will die. Unknown to Robin, he was her first healing when he hit his head as a child, an act that was witnessed by his sworn enemy, Sir Guy of Gisborne. Sir Guy, knowing the consequences if she does not make it home, enlists the help of the evil witch Mordrelle, who was banished from Avalon many years ago, to help prevent Gwyneth's return. But Sir Guy is killed in a fight with Robin, and brought back to life by Gwyneth, so putting him in the same position as Robin. Sir Guy has to kill Mordrelle to enable Gwyneth's return to Avalon.

Marion sees a giant fireball fall from the sky into Sherwood Forest, and rushes off in search of what it has brought. When she reaches the site, she discovers a strange, diamond-encrusted creature. She befriends him, and tries to help him discover what he needs to return home. Lady Claudia has also seen the fireball and sends Barkley to follow its path, and gather the untold riches that she believes it is supposed to provide. When Marion does not return to camp, Robin sets out to find her. Then he and Marion must fight to save the creature from the grasp of Lady Claudia's men, and help it return to its ship.

A mysterious black castle, occupied by an evil creature, has the power to wreak havoc on the world and destroy it. Olwyn, the ancient magician, tells Robin he must discover the architecture of the old castle and learn its secrets in order to kill the creature and nullify the castle's powers. But first Robin has to rescue the family of the Engineer, who are being held captive inside.

Little John feels worthless and second best to Robin, and leaves the camp to make his own way in the world. He enters a contest to join the ultimate army, not realizing it is being developed by the evil Lord Malice for his destructive ends. Meanwhile, Robin discovers that his former teacher, Andrew MacGregor, has been captured by Malice. He and Marion must enter the contest to win and be able to join the same army as Little John. They also discover their friend Kemal, a battle-hardened nomad, has joined the army ranks, and together they try to rescue MacGregor, and thwart Lord Malice's plans

When Robin humiliates Prince John by stealing his money, Prince John vows to kill Robin once and for all. He trades one year of his life to the sourceress Mortiana so that she may bring back to life three of Alexander the Great's dead warriors. When the warriors can't capture Robin, they capture Marion, to act as bait. Ignoring fear for his own life, Robin enters the castle to rescue Marion from the clutches of the evil men.

Marion is abducted by Brother Groliet, an evil member of the God of Death cult. She is intended to become the bride of Balor, the Prince of Darkness, to have a child and give him the power of eternal life. Marion refuses, and is cast into a deep spell. Only Robin can obtain the horn of a unicorn, which is the only source of power strong enough to destroy the evil Lord of Death

Robin and his men rob a gambling house, and make a mortal enemy of its owner, Simon Asher. Robin is overpowered and captured by a quartet of aristocratic huntsmen: Master Chu, Lord Henry, Lord Spire and Mr. Fox. They offer Robin a chance of survival by playing a game of hunting, with Robin as the prey. To ensure his cooperation, they are holding Friar Tuck hostage.

Master Ika returns, and sets a bomb trap for Robin and his band. Sir Guy of Gisborne has returned from the crusades purporting to be a changed man, and saves Marion from being injured in a fight: he still loves her, and persues her again. But it was Sir Guy who hired the Japanese assassin to set the trap for Robin. Sir Guy leaves a note for Robin to find, which will lead him into another deadly explosive trap. Marion declares to Guy that she loves Robin, not him, and goes off to follow Robin. Sir Guy realizes that Marion is now going to fall into the trap intended for Robin. So both Guy and Robin have to work together to save her.

Robin saves a beautiful young woman, Gwynedd, disguised as a nun, on the road to the town of Royston. She has been searching for him to enlist his help in saving her sister, Bernadette, who is to be hanged if she does not allow herself to be married against her wishes to Drugo, the henchman of the evil Baron Royston. Together they plan to defeat the evil villains who run the town. Meanwhile, Little John's sister Ingrid wants to go to Royston to try to find herself a husband, but Little John thinks it is too dangerous and locks her up to prevent her going. Of course, this doesn't stop her for long, and she ends up in Royston in the middle of the raid to rescue Gwynedd.

The slavetrader Brand kidnaps Robin's friend Kemal and his bride, Princess Kadija, and plans to auction them. Marion also has a score to settle with him, from her distant past. Robin and his band pretend to be rich bidders, as part of the scheme to free the two prisoners and get Marion's revenge. But Brand escapes with Kadija into the Forbidden Zone, where Robin and his band are forced to follow and battle him.

Queen Eleanor of Aquitaine has traveled with some of her Amazon warriors from Jerusalem where they found a fabled map. This map will help her to find the staff of Moses, which according to legend lies in a cave in England. But the sultan Salim is also seeking it, in order to possess its special powers, and he sends his henchmen with Devlin, an antique collector, to follow her. Before Robin and Marion can reach her, the queen is taken captive. They and the Amazons have to rescue the queen from the cave with the staff of Moses, where she is being held by the Sultan's men.

While on his way to the wedding celebrations of his friend Talbot, Robin meets his double, the wicked Jacobi, who has just broken out of a prison transport with five others. After overcoming him, Robin dons his clothes to fool the other escapees to try to put them behind bars again.

Robin is warned by a young boy that Merlin's sceptre is in the hands of the wicked magician Malenoch, who has returned from the dead and decided to take over the kingdom of England using an army of soldiers he has also brought back from the dead. As students who trained under Merlin, Olwyn and Prince John's sourceress Mortiana must team up to destroy the evil tyrant first. Olwyn requests the help of Robin Hood and his band, and they are even assisted by Prince John's men, in the quest to wrest the sceptre from Malenoch's control.

The fanatical Father Dutton has sworn to end the old Celtic beliefs in England. He imprisons the druid priests of his village. But some of the villagers don't agree with this and help them. Dutton attacks the helpers, and one of the wounded survivors slips away to seek Robin's help. When he hears what Dutton is doing, he decides to put an end to the priest's plans.

Robin's friend Lord Hazelmere requests his help to forge an alliance of nobles to put an end to Prince John's tyranny once and for all. The time and place of the meeting must remain secret, but Prince John has eyes and ears everywhere. Marion, Little John & Friar Tuck have various adventures bringing the other three participants to the meeting. But their efforts are not enough to keep the secret from Prince John.

The wicked Norman Lord Rupert uses his son Gregory to wage a campaign of terror to pressurise the Saxon farmers into handing over their land to him. The plan proceeds until he takes over some property of Little John's brother, when Robin and his band arrive and decide to intervene to organise some resistance. In the ensuing fight Robin captures Gregory, but Lord Rupert counters by capturing Joshua, the son of the local judge, Marcus of Brandwyn. So Robin now has to rescue Joshua from Lord Rupert's castle.