Life would normally continue with humans and their evolving surroundings, but this movie envisions what could happen if we would just disappear.
Humanity made a strong impact on the planet, but we should not underestimate the incredible power of nature. With our disappearance, animals that depend on us will suffer drastic population declines. At the same time, without human presence on Earth, some animal species that are close to extinction would suddenly grow in population. Most of our remains will decompose because of nature power initiated by fire, weeds and termites. The only thing that would remain of us would be our trash of plastic, chemicals and radioactive material. But of course the question is, why would we all of a sudden disappear?
Source: Asap SCIENCE