Ed is commissioned to make a documentary intending to change those habits of society that are harmful to animals. But completely alien to the animal protection movement, he will realize that to carry out the project, he must first convince himself.

From the UFC Octagon in Las Vegas and the anthropology lab at Dartmouth, to a strongman gym in Berlin and the bushlands of Zimbabwe, the world is introduced to elite athletes, special ops soldiers, visionary scientists, cultural icons, and everyday heroes—each on a mission to create a seismic shift in the way we eat and live.