Tonight

• 20:00

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  Dead Or Alive

  Blood In The Water

  Californians Randy, Cliff and Red are attacked by a shark. In South Africa, newlywed surfers suffer a similar fate.

• 20:55

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  Stephen Hawkings Science Of...

  Code Red

  Dealing with crises has always been one of science's greatest challenges. In this episode, Stephen Hawking and his team investigate astonishing breakthroughs that are making human life less fragile in the face of danger. First on the agenda, Chris Eliasmith looks into a helicopter that can take p...

• 21:50

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  Engineering Connections

  Bullet Train

  Reveal the surprising engineering connections between Japan's 'bullet train' - the world's first high speed railway and other ancient inventions.

• 22:45

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  Air Crash Investigation

  I'm The Problem

  A routine flight turns deadly when the pilots hear gunshots in the cabin. Moments later, the aircraft dives and crashes. With 43 people dead, investigators struggle to determine the intended victim.