After beginning their train trip to California, a famous film actress and her daughter discover their compartment has also been assigned to a handsome biology professor.
Two scriptwriters argue about the fate of Henrietta, a charming and gamine shopgirl. One favors a comical path for their heroine, who is overcome with sentimental love for a young photographer on Bastille Day.
In the 18th century, the pirates of Madagascar, lords of the Republic of Libertatia and masters of the Indian Ocean, live in an impregnable natural fortress, killing, robbing and plundering with impunity, so the British Navy hatches a daring plan to destroy them.