A large ship sailing in international waters allowed patrons to gamble the night away. Mr. Lucky was the owner, and with his assistant Andamo, handled problem patrons, crooks, and cops to stay afloat.

Mr. Lucky was an honest professional gambler who had won a plush floating casino, the ship Fortuna, and used it as his base of operations. Staying beyond the three-mile limit, where he could operate a gambling ship legally, Mr. Lucky played host to a wide variety of people, all of whom came to make use of his luxurious facility. Helping him run the casino, is his good friend Andamo.