The central conflict ignites when Queen Medb of Connacht launches a massive cattle-raid against Ulster to seize the legendary Brown Bull of Cuailnge. The narrative follows the young hero Cuchulainn, who stands as the sole defender of his province while the rest of the Ulster warriors are incapacitated by a mysterious curse. As the armies of Connacht advance, Cuchulainn utilizes his superhuman strength and martial prowess to hold the border against overwhelming odds. The text employs a non-linear, episodic structure characteristic of early Irish oral tradition, weaving together heroic exploits and supernatural encounters.

Readers and critics frequently highlight this translation as a definitive entry point into the complex world of Irish mythology. Discussion often centers on the raw, visceral nature of the prose and how effectively it captures the ancient, often brutal spirit of the original oral tales. Many appreciate the inclusion of the preparatory stories, which provide necessary context for the central conflict of the cattle-raid. Scholars often note that the collaboration between the translator and the illustrator creates a unique aesthetic experience that bridges the gap between medieval tradition and modern artistic interpretation. The work is widely regarded as a significant contribution to the preservation and accessibility of Irish heroic literature.