Merlin, Sorcier de la cour du Roi Arthur, vie à San Francisco aujourd'hui. Après 1600 ans, il est temps pour lui de prendre sa retraite et de trouver un remplaçant : Zac Rogers, un jeune homme au potentiel prometteur, mis en scène comme une épée moderne dans la pierre et dirigé par John Astin, la star de la famille Addams. M. Merlin emmène Zac, pour la chevauchée de sa vie.

Zac's spell lessons are increasing as well as his responsiblity with his new found powers.In this episode Mr.Merlin teaches Zac to clone or duplicate things.With a little urging from his friend Leo,Zac decides to get rich quick.Counterfitting money with spells leads to all kind of trouble for Zac,leaving a mess for the old sorcerer to clean up.

Zac creates a magic powder that causes a major case of the sneezes.

It's up to Mr. Merlin to save the day when Zac and Leo get swindled by a music agent.

After Zac's and Leo's friendship comes to blows over the affections of a girl, Mr. Merlin needs to smooth things over between them.

Zac's messing with magic leads to two Zacs. Mr. Merlin must destroy the clone, only he doesn't know which is the real Zac.

Zac's attempt at a chemistry project doesn't have quite the intended result.

Zac uses Mr. Merlin's magic to help him win a fight.

Mr. Merlin needs to have a tonsilectomy, but stubbornly refuses.

Zac joins a transport club, but begins to miss Leo.

Mr. Merlin and Zac go on a camping trip to get to know each other better.

When Alex loses her ""pop"" or ability to transport, Merlin tries to restore it but it accidentally goes into Leo instead.

Mr. Merlin and Alexandra play matchmaker with Leo.

Zac befriends a foreign world class gymnast.

It may be goodbye for Mr. Merlin and Zac when Zac's mother plans to leave San Francisco.

It may be goodbye for Mr. Merlin and Zac when Zac's mother plans to leave San Francisco.

Mr. Merlin scoffs at Zac's superstitions when the lad puts his faith in a lucky amulet.

Mr. Merlin tries to help a man who runs a hot dog stand.