A businessman is assailed by dreams of a Thunderbird who needs his help, despite his strong denial of the Lakota Heritage.
To make things worse, he is told to find a woman he doesn’t know in a South American jungle to help him solve problems initiated by his former business partner, and aid the Thunder Being in the process.
With help from several Indigenous healers, Secora James and Gideon Yellow Thunder face hardship, sorrow and death on their path to find out what the Thunderbird needs from them, and what she can give them in return.
Together they find a giant sloth, and the source of slavery, abduction, and death on a volcano.
Together they face death to save Wakinyan Tanka, the great thunderbird, and bring greedy assassins to justice.