The poem concentrates on a few weeks during a long war, opening with the quarrel between Achilles and Agamemnon and tracing its consequences for both Greeks and Trojans. Divine interventions repeatedly shape battles and fortunes, as gods favor or hinder warriors and mirror human passions. Personal honor, rage, and the fragility of life motivate major actions, leading to the death of a beloved companion, a climactic duel, and the negotiation of a hero's return for proper rites. Scenes alternate between fierce combat, formal speeches and councils, and mourning, while extended descriptions of arms, ships, and funeral ceremonies give the narrative epic detail and ritual weight.