Having just moved to a new town, widow Elaine Freedman (Cheryl Ladd) and her teenage daughter, Justine (Jody Thompson) are greeted by the effusive, terribly nice Dr. Calvin Lawrence (Michael York). Sensing that Justine is bit testy and out of sorts (most kids her age tend to get that way, you know), Dr. Lawrence recommends that she begin taking a special vitamin which he manufactures in his own home. Before long, Justine is the model of perfection -- just like all the other teenagers in town. What no one realizes until it is almost too late is that the kindly Dr. Lawrence is the quintessential control freak, using mind-altering drugs and secret radio waves to create his own "perfect city," where everyone bends to his will.
On behalf of "oppressed bugs everywhere," an inventive ant named Flik hires a troupe of warrior bugs to defend his bustling colony from a horde of freeloading grasshoppers led by the evil-minded Hopper.
When a freighter is viciously attacked in the Pacific Ocean, a team of experts -- including biologist Niko Tatopoulos and scientists Elsie Chapman and Mendel Craven -- concludes that an oversized reptile is the culprit.