In New York City in 1980, Dexter Mitchell plays half-willing big brother to his neighbors, a trio of exchange students from the People's Republic of China.In New York City in 1980, Dexter Mitchell plays half-willing big brother to his neighbors, a trio of exchange students from the People's Republic of China.In New York City in 1980, Dexter Mitchell plays half-willing big brother to his neighbors, a trio of exchange students from the People's Republic of China.