Con artist Marilyn Fryser (Joan Collins) has a steady and profitable racket. Along with an unscrupulous ship captain (Robert Lansing), she takes gullible investors on a cruise of the Everglades and persuades them to invest in a housing development that will never be. But when she and her latest group of suckers go ashore on a small island, they’re horrified to discover that illegally dumped toxic waste has created a breed of giant ants set on human destruction.

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