Eight-year-old Drake is snatched up by the King's soldiers and taken to the castle where he is told by the wizard Griffith that he has been chosen to be a Dragon Master like Ana, Rori, and Bo--and his first task will be to discover whether his dragon, Worm, has any special powers.

When Drake discovers that his friend and fellow Dragon Master, Bo, is trying to steal the Dragon Stone, he wonders if the dark wizard might be behind it, and he must try to find a way to protect the stone while keeping Bo's family out of danger.

The Dragon Masters have two tasks: track down the newly hatched Lightning Dragon, and find his destined Dragon Master, a boy named Carlos, and convince him to trust them--but somebody else has dark plans for this particular powerful and wild dragon.

The dark wizard Maldred has trapped dragon master Eko as well as wizards who have opposed him, all of them frozen in time and space inside a wall in his hideout; so Drake and Worm set out to seek the help of the Time Dragon--but when a imp named Beezel interferes Drake ends up back in his own past, and he must find a way to get back to the present.

Having taken the silver key, the evil wizard Maldred is after the gold key, which is protected by the Gold Dragon and her Dragon Master, Darma, but by the time Drake and Rori get there, Eko and her Thunder Dragon have seized the gold key--so together the three dragon masters, follow her through the portal to Maldred's tower, but without their dragons will they be able to stop Maldred and his deluded helper, or even save themselves?

When word-eating Captain Rottingbones and his crew steal from the Word Wizard while she is telling a story, her pen proves mightier than the pirates' swords.

The evil wizard Maldred has stolen the gold and silver keys which will allow him to release the Naga, the powerful earthquake dragon at the center of the earth--so Drake and several of the other Dragon Masters travel to the Naga's Temple in the Dragon Islands, to try and stop Maldred, and prevent him and the earthquake dragon from destroying the kingdom.

After having inadvertantly acquired the reputation of being a brave young knight, Digory, now also a prince living in the castle, goes in search of the missing King Widget and finds his life complicated even further when he is mistaken for a wizard.

Superworm's bug friends attempt to free him from the clutches of Wizard Lizard who, having heard of Superworm's wondrous and heroic deeds, captures him and forces him to dig for treasure.

When the king decides to take the dragons to Arkwood to visit Queen Rose, Rori, Drake, and their dragons are left behind--so when the evil wizard Maldred attacks the castle riding a giant four-headed dragon that spits poison, the two young dragon masters and their dragons are forced to defend the castle by themselves.