Along Came Arachnoid - S2.E8

Max and Virgil discover that Norman who is basically not afraid of anything has a fear of spiders when they go head to head with a scientist who has mutated himself into a spider and now has control of all arachnids that he has mutated and enlarged in size. Norman must now attempt to conquer his fear in order to help Max and Virgil prevent the scientist from conquering and overrunning the entire earth with giant mutant spiders.