Catalyst - Season 21
Season 21
Episodes
How Food Works (Part 1)
In a two part special, chef Paul West, dietician Professor Clare Collins and chemist Dr Noby Leong reveal the delicious chemistry, biology and physics hidden inside the foods we love, so we can cook better and eat healthier.
How Food Works (Part 2)
Paul explores the science behind cryogenic freezing and how it's being used to ensure frozen fish tastes almost as good as fresh. In a gelato factory, Clare gets the scoop on why humans are hard-wired to desire junk food.
Teeth Clinic
Catalyst sets up a pop-up dental clinic in Western Sydney to investigate Australia's most common dental complaints, uncovering the tips to keep your mouth healthy and revealing surprising secrets behind a beautiful smile.
Asteroid Hunters
Asteroids are an ever-present threat to our survival, but as Astrophysicist Professor Tamara Davies discovers - they may also be responsible for kick-starting life on Earth.
Building Greener Cities
As our populations grow, cities are under increasing pressure. Physicist Dr Niraj Lal explores engineering solutions designed to make our cities cleaner, greener and more efficient places to live.
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After attending a medical conference in Beijing and coming frighteningly close to dying in a car crash, Dr. Matthew Nolan arrives home and is immediately arrested at London's Heathrow Airport. Exhausted and confused, Nolan is accused of the murder of a woman who was in the car he crashed. Despite his protests that he was driving alone, Nolan is set to return to China to face charges.
DC Hana Li is the no-nonsense London officer charged with accompanying Nolan back to Beijing. Her resentment for this assignment, and of Nolan himself, is immediate. However, in flight, when a first death occurs, DC Li begins to suspect foul play. Further deaths confirm that Nolan is in danger, and after a call from MI5, Hana finds herself embroiled in an escalating conspiracy.