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 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.

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 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.

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

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

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.

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.

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.

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.