A group of young railway enthusiasts attempt to stop the closure of the local railway by trying to raise money to buy it and the steam engine "Matilda." They get help from a pair of men claiming to be enthusiasts but who turn out to be robbers who plan to hold up the mail train A group of young railway enthusiasts attempt to stop the closure of the local railway by trying to raise money to buy it and the steam engine "Matilda." They get help from a pair of men claiming to be enthusiasts but who turn out to be robbers who plan to hold up the mail train A group of young railway enthusiasts attempt to stop the closure of the local railway by trying to raise money to buy it and the steam engine "Matilda." They get help from a pair of men claiming to be enthusiasts but who turn out to be robbers who plan to hold up the mail train A group of young railway enthusiasts attempt to stop the closure of the local railway by trying to raise money to buy it and the steam engine "Matilda." They get help from a pair of men claiming to be enthusiasts but who turn out to be robbers who plan to hold up the mail train