The narrative centers on the wrath of Achilles and the catastrophic consequences of his withdrawal from the Trojan War. Driven by a perceived slight from King Agamemnon, Achilles refuses to fight, leaving the Greek forces vulnerable to the Trojan army led by Hector. The poem follows the shifting tides of battle, the intervention of the Olympian gods in human affairs, and the eventual confrontation between the two greatest warriors of the age. This epic poem utilizes a dactylic hexameter structure to recount the final weeks of the decade-long siege of Troy.

Readers and critics frequently highlight the work as a foundational text that defines the Western literary tradition. Discussion often centers on the complex morality of the characters, particularly the humanity displayed by both Achilles and Hector despite their roles as enemies. Scholars often point to the balance between the visceral, brutal depictions of combat and the moments of profound grief that punctuate the narrative. Many readers note that the poem remains relevant due to its unflinching examination of the human condition during times of conflict. The text is widely regarded as a primary source for understanding the values and social structures of the ancient world.