Season 6 - Episode Guide

If you had less than one second to make a life-or-death decision to shoot a man who might be armed with a lethal weapon, what would you do? Would the ethnicity of the man affect your decision? Are you sure? The outcome – whatever your race – will surprise you. Brain imaging studies are showing that negative cultural stereotypes hijack everyone's subconscious decision-making. But some science says we can overcome bigotry through exposure, self-awareness and flexible social networks… and, most controversially of all, ultra-violent video games!

The ticking clock could just be a trick of the mind; looking at the possibilities that science can make the clock move backwards.

The show takes a look at a new theory that says instead of passing on genes, humans have another purpose.

Scientists, in various of fields, are taking seriously the possibility that this world maybe a virtual reality.

Odds are pretty good that extraterrestrial life exists; new research shows we should look closer to home, possibly inside our bodies.

The brains of pathological liars may provide insights on whether the human brain is wired for lying; technology can either make it easier for us to be dishonest, or could it someday instantly reveal someone is lying.