In a fantastical world called Alagaësia, a young farm boy named Eragon stumbles upon a mysterious blue stone that turns out to be a dragon egg. When the egg hatches, Eragon forms a magical bond with the dragon, whom he names Saphira. This discovery thrusts him into a dangerous journey, as dragons were believed to be extinct and are now highly coveted by the evil King Galbatorix. Eragon finds himself mentored by Brom, an enigmatic former Dragon Rider, who teaches him swordsmanship and magic. As Eragon learns more about his destiny, he realizes that he is the next Dragon Rider, destined to overthrow Galbatorix and restore peace to the land.

They embark on a perilous quest, encountering allies like the skilled fighter Murtagh and the rebellious Varden. Eragon's journey is fraught with peril, including encounters with deadly creatures called Ra'zac and the fearsome Shade Durza, who serve the king. Alongside these challenges, Eragon must also navigate the complexities of his burgeoning powers and the responsibility that comes with them. As he learns more about the history of the Dragon Riders and the plight of the oppressed people of Alagaësia, Eragon's resolve to confront the tyrant Galbatorix strengthens. The path ahead promises to be fraught with trials and revelations, setting the stage for a monumental struggle between good and evil.