With Nikola Tesla at the controls, teacher Nathan Greene and the time-traveling teens journey back to 17th century Virginia to witness the founding of Jamestowne. As the famed Serbian-American scientist brings the classroom portable in for a landing, two young Native Americans witness the portable's descent from the sky. The boy and girl quickly return to their village and the girl tells her father, Chief Powhatan, that People of the Sky have landed. Called "playful one," Powhatan's daughter, Pocahontas, is known to tell imaginative stories of her own creation. Still, as a precaution, Powhatan sends his brother and a group of warriors to investigate his daughter's claims.
As Greene and his students trek across a grassland in the direction of the English settlers' landing site, Chief Opechancanough and his warriors surround the time travelers and take them hostage, leading them to Powhatan's village where Mr. Greene faces execution.
So begins the third adventure of the students of Cassadaga Area High School, whose latest trip includes meeting the famed adventurer John Smith and witnessing the beginning of the first English colony in North America, all while being chased through time by the most dangerous Native of the 17 century.