Starting from the Cambrian Period (530 MYA) and ending at the Early Triassic Period (248 MYA), Walking With Monsters shows the life and death struggles prehistoric creatures before the dinosaurs went through.

• 本片介绍了在这段时期内的各种史前生物的生死搏斗，同时也描绘了我们人类最早祖先的真实模样。