The video shows a black spider crawling on a web. The spider is seen moving around in the web, which is attached to a rocky surface. The spider's movements are slow and deliberate as it navigates the web. The web is intricate and appears to be well-constructed, with several strands and patterns visible. The spider's body is shiny and its legs are long and thin. The background is mostly dark, with the rocky surface providing a contrasting texture to the smooth web.