Ferocious African bees descend on America in massive swarms, leaving a trail of death and destruction in their wake. The US president calls in a team of crack scientists and the army, but initial attempts to destroy the invaders prove futile. Disaster drama, starring Michael Caine, Henry Fonda, Richard Chamberlain, Katharine Ross, Olivia de Havilland and Richard Widmark.

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.