E1 · Cheating Death
As Bill breaks down the science of aging, his correspondents try bizarre beauty treatments and learn how spinach could transform organ transplants.
E2 · Surviving in a World Without Water
Derek Muller discovers why Mexico City is sinking, Nazeem Hussain tests his desert survival skills, and Bill has a drink with a "water sommelier."
E3 · The Addiction Episode
Bill explains how addiction changes the brain, comedian Maria Bamford shares her struggles, and Cara Santa Maria visits a research lab casino.
E4 · Recipes from the Future
Karlie Kloss tours Japanese farms that grow produce without soil to save water and space. Back in the studio, Margaret Cho samples meat made in a lab.
E5 · Evolution: The Fact of Life
In London, mutated mosquitos make a meal of Derek Muller. Comedian Paul F. Tompkins helps Bill burst a common myth about evolution.
E6 · What Is Your Pet Really Thinking?
Do dogs get depressed? Do monkeys like magic tricks? Bill and his guests explore animal behavior that's remarkably human.
