When Lightning Strikes
In October 2005, Allan MacDiarmid was struck by lightning as he played football with a group of friends near Sudbury in Suffolk.
Amazingly he survived with barely a scratch.
Combining Allan's extraordinary testimony with the latest scientific thinking and the work of amateur storm chasers, we deconstruct the moments before and after he was hit by the blinding flash in an effort to better understand one of the most powerful forces in nature.
The latest theory is that cosmic radiation from beyond the Earth's atmosphere may be the trigger for lightning.
The programme also delves into the enigma that is ball lightning and talks to several witnesses of the strange phenomenon including one who claims that it passed through him.