"Wind and Truth" centers around Dalinar Kholin's bold challenge to the god Odium, setting the stage for a high-stakes contest of champions that will determine the fate of Roshar. With only ten days to prepare, the Knights Radiant and the nations of Roshar must unite and muster their strength for the ultimate confrontation.

The key characters include Dalinar Kholin, who faces immense pressure as a leader, and the Knights Radiant, who play crucial roles in the preparation and execution of the contest against Odium. The book also features a diverse cast from various races and cultures of Roshar, emphasizing the theme of unity.

The major themes include the weight of leadership, as Dalinar grapples with his responsibilities and past; the power of unity, highlighting the collaboration between different peoples and cultures; and hope amidst despair, showcasing the characters' resilience and determination in the face of overwhelming odds.