8. Disaster Relief

2014 - Season 8

A look at the problems the humanitarian community faces when tackling a disaster.

7. Trains

2014 - Season 8

The team look at measures engineers take to ensure Britain's rail system stays on track.

6. Flooding

2014 - Season 8

With the waters receding, the team takes a more considered look at the recent floods.

5. Flu

2014 - Season 8

The team look at flu, with Jem Stansfield explaining the disease on a cellular level.

4. Ageing

2014 - Season 8

The team investigate the ill effects of old age, from weakened bones to dementia.

3. Big Data

2014 - Season 8

Liz Bonnin takes a look at how big data monitors Rolls Royce jet engines.

2. Cancer

2014 - Season 8

Liz Bonnin explains how cells turn cancerous by blowing high-tech bubbles.

1. Energy

2014 - Season 8

The team investigate how close Britain might get to running out of electricity.

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