What would happen on Earth if suddenly every human being on the planet vanished? This documentary from National Geographic explores how nature would establish a new equilibrium in the absence of human influence. Aftermath features what scientists and others speculate the earth, animal life, and plant life might be like if humanity no longer existed, as well as the effect that humanity’s disappearance would have on the artifacts of civilization. Based on book The World Without Us. Due to the success of this 2 hour documentary a 4 episode series was created, Aftermath, following different scenarios and what happens.