A test rocket carrying various animals and insects goes off course and crash-lands in deepest Africa. Soon, scientists Davis and Griffin hear tell of giant wasps on the loose in the very area where the rocket went down. Could cosmic rays have brought about these grotesque mutations? Of course they could! Crane's monstrous film incorporates ingenious trick photography, model work and stop-motion animation, as well as extensive footage culled from the 1939 Spencer Tracy picture Stanley and Livingstone. The result is not so much a movie as a patchwork.