Twins (both played by Infante) are separated while very young, one raised as a singer by their widowed mother and another as the heir to one of Mexico's richest families.
On an African safari with his friend Grant, Clyde Beatty plans to buy some black-maned Numbian lions from Jo Carter but her animals are wiped out by a fire.
After being framed for a murder he didn't commit, Tom Penney (Donald Houston) serves his time and returns to his rural English home to establish a quiet life.
Swindler in jail devises a scheme to blackmail the family of recently deceased people, threatening to tell supposedly incriminating facts about their dead relatives' lives.