I am a movie director and I just received the following movie plot. Could you help me answer this question? If not, let me know by writing "Not answerable". Plot title: The New World Movie plot: In 1607, Pocahontas, the spirited and adventurous daughter of Chief Powhatan, and others from her tribe witness the arrival of three ships sent by English royal charter to found a colony in the New World. Aboard one of the ships is Captain John Smith, below decks, in chains. While initially sentenced to death by hanging for his mutinous remarks, once ashore, Smith is pardoned by Captain Christopher Newport, the leader of the expedition. While the prospects for the settlement are initially bright, disease, poor discipline, supply shortages, and tensions with the local Native Americans (whom Newport calls "the naturals") place the expedition in jeopardy. Smith takes a small group of men up river to seek trade while Newport returns to England for supplies. While on this mission, Smith is captured by a group of Native Americans and brought before their Chief Powhatan. After being questioned, the captain is nearly executed. He is spared when Pocahontas intervenes and saves his life. Living among the Native Americans as a prisoner for an extended period, Smith is treated well and earns the friendship and respect of the tribe. Coming to admire this new way of life, he falls deeply in love with Pocahontas. She is intrigued by the Englishman and his ways. The chief returns Smith to Jamestown with the understanding that the English are to leave the following spring, once their boats have returned. Upon his return, Smith encounters the settlement in turmoil. Pressed into accepting the governorship, he finds the peace he had with the Natives replaced by privation, death, and the difficult responsibilities of his new position. Smith wishes to return to his love but dismisses such action. He thinks of his time among the Native Americans as "a dream" from which he has awoken. Their numbers dwindle throughout the brutal winter, and the settlers are saved only when Pocahontas and a rescue party arrive with food, clothing, and supplies. As spring arrives, Powhatan realizes that the English do not intend to leave. Discovering... My question: What is the the chief's stipulation for returning Smith to Jamestown?
The answer to this question is:
The English are to leave the following spring, once their boats have returned.