The series which explains it all, with Eamonn Holmes and Jenny Hull. This week, how drag-car racers get from 0 to 240mph in six seconds and how
"human mole" Peter Faulding burrows under ruined buildings to rescue survivors. Plus, British swimmer Alison Streeter , who has swum the Channel some 32 times.
Producers Gill Stribling-Wright and Martin Lucas Executive producer Alan Boyd