S18E01 - Meet The Avatars

S18E02 - Can Seaweed Save The World?

S18E03 - Closing In: The Hunt For Alien Life

S18E04 - The Day The Dinosaurs Died

S18E05 - Heartbeat: The Miracle Inside You

S18E06 - Death Dive: Into The Rings Of Saturn

S18E07 - Sit Back, Relax; The Dawn Of The Driverless Car

S18E08 - Can We Save the Reef?

S18E09 - How To Exercise Better

S18E10 - Gut Revolution (Part 1)

S18E11 - Gut Revolution (Part 2) Garry's Story

S18E12 - It's A Twin Thing

S18E13 - The Secret To Making Better Decisions

S18E14 - Farmer Needs A Robot

S18E15 - Back To The Moon

S18E16 - Gut Revolution (Part 3) Victoria's Story

S18E17 - Sleep Matters