Brief description
In episode 2 (Three robots), three robots are tourists in a post-apocalyptic world where all humans have ceased to exist. The robots are on a tour of sorts of the old vestiges of humankind. In this situation, the robots are discussing and learning about what caused the human demise. While doing so, they learn from a cat that it was not a environmental disaster, but cats that developed thumbs that was the cause of humans becoming extinct. The robots scan their environment with thermal imaging and realize that they are surrounded by hundreds of cats.