Episode Title:Secrets of the Spider's Web.Episode Description:The Kratt Brothers are testing out Aviva's new "super strength" rope. Unfortunately, it breaks, and Chris falls to the ground. Just when it seems that they are about to give up on creating super strong rope, a golden orb weaver spider (dubbed "Orbit" by Martin) gently parachutes down on to Chris's face on a thread of spider silk, inspiring Aviva to try to replicate spider silk. Two miniaturized Kratts explore the world of the spider and how it creates its web, finding clues along the way that indicate what spider silk is made of that will help Aviva to replicate it. They also explore the world of biotechnology, the science of nature-inspired inventions. But Donita has the intention of capturing all the orb spiders to make a dress made out of golden silk. The Kratt Brothers must prevent her from doing so by using the strength and toughness of spider silk.