Jon and guests James Acaster, Rebecca Front and Ivo Graham discuss, categorise and rank worries to do with Earth. Is the world keeping secrets from us?

Jon is joined by Tom Allen, Rosie Jones and Matt Forde to discuss Holidays. Could they survive a foreign prison? Are drones getting out of hand?

Jon and guests Sara Pascoe, Phil Wang and Catherine Bohart discuss, categorise and rank worries to do with Global Affairs. What are micronations?

Jon is joined by Morgana Robinson, Lolly Adefope and Matt Forde to address worries to do with The Future. What will we look like in the future?

Jon and guests Josh Widdicombe, John Robins and Holly Walsh discuss People worries. Are greetings getting out of hand? Are robots doing all our thinking?

Jon is joined by Lucy Beaumont, Angela Barnes and Jamali Maddix to address worries to do with Consumerism. Is the High Street dead? Why aren't people recycling?

Jon is joined by Rob Beckett, Ed Gamble and Lou Sanders to address worries concerning Health. Are we due a plague? Is noise the silent killer?

Jon and guests Russell Howard, Roisin Conaty and Lucy Beaumont discuss, categorise and rank worries to do with Leisure Time. Are pubs dying? What are e-sports?

Jon and guests Richard Osman, Jessie Cave and Darren Harriott discuss, categorise and rank worries to do with Modern Living. Has inventing got out of hand? Is magic dead?

Jon is joined by Joe Wilkinson, Lucy Beaumont and Kiri Pritchard-McClean to address worries to do with The Self. Has Joe fallen in with a bad crowd?