Three Cups of Tea tells the true story of Greg Mortenson, an American mountaineer who, after a failed attempt to climb K2 in Pakistan, becomes lost and finds refuge in a remote village called Korphe. The villagers' kindness inspires him to make a promise: to return and build them a school. This simple promise grows into a decades-long mission across Pakistan and Afghanistan, where Mortenson works with local communities to build schools, especially for girls, believing education is the key to peace.