A Pony Express rider discovers some mysterious goings-on during the construction of a telegraph line. When a murder is committed, he is blamed for it.A Pony Express rider discovers some mysterious goings-on during the construction of a telegraph line. When a murder is committed, he is blamed for it.A Pony Express rider discovers some mysterious goings-on during the construction of a telegraph line. When a murder is committed, he is blamed for it.