Scientist Dr. Bradford Crane and army general Thalius Slater join forces to fight an almost invisible enemy threatening America; killer bees that have deadly venom and attack without reason. Disaster movie-master Irwin Allen's film contains spectacular special effects, including a train crash caused by the eponymous swarm.

When ants, displaying never-before-seen behavior, seize an island, the controversial Thorax Team is called in to stop the massive threat, only to discover that the ants are controlled by something beyond this world.

A swarm of locusts appears on the horizon near a Midwestern town and the inhabitants must find a way to destroy or divert them before the insects devour the area's valuable crops

In southwestern Pennsylvania, 17 year cicadas emerge from hibernation for their mating cycle in this observation of insects.