Jay explores the emergency that is climate change, and considers what we can do, as a species, to save ourselves from… ourselves.

Jay learns about a surprising threat. Supervolcanoes are often overlooked, but when they erupt they will change the Earth's climate!

Jay believes that aliens are out there, watching us at the very least. But do they pose a threat? (Maybe!)

During the COVID-19 pandemic, Jay tackles the existential threat of disease, while considering the added danger of human-made viruses.

Jay learns that, far from being a relic of the Cold War, nuclear Armageddon is as big a threat as ever. Terrific.

Jay meets with experts including the Planetary Defence Officer at NASA to find out if we're all gonna die.