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17 Episodes
S18 E1 - Meet The Avatars
S18 E2 - Can Seaweed Save The World?
S18 E3 - Closing In: The Hunt For Alien Life
S18 E4 - The Day The Dinosaurs Died
S18 E5 - Heartbeat: The Miracle Inside You
S18 E6 - Death Dive: Into The Rings Of Saturn
S18 E7 - Sit Back, Relax; The Dawn Of The Driverless Car
S18 E8 - Can We Save the Reef?
S18 E9 - How To Exercise Better
S18 E10 - Gut Revolution (Part 1)
S18 E11 - Gut Revolution (Part 2) Garry's Story
S18 E12 - It's A Twin Thing
S18 E13 - The Secret To Making Better Decisions
S18 E14 - Farmer Needs A Robot
S18 E15 - Back To The Moon
S18 E16 - Gut Revolution (Part 3) Victoria's Story
S18 E17 - Sleep Matters
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