Quién sabe? Watch Full Movie Free Online Trailer Trailer: Quién sabe? Watch Full Movie Free Online http://www.imdb.com/video/imdb/vi3972924441/player Quién sabe? (1967) El Chuncho’s bandits rob arms from a train, intending to sell the weapons to Elias’ revolutionaries. They are helped by one of the passengers, Bill Tate, and allow him to join them, unaware he is an assassin working for the Mexican government.