The Environment Agency responds to a major incident after canisters containing mustard gas are dumped in a lake. The race is on to find the canisters before they affect the water supply. Show more
Discover 11,128,835 listings and 278,163 playable programmes from the BBC
The Environment Agency responds to a major incident after canisters containing mustard gas are dumped in a lake. The race is on to find the canisters before they affect the water supply. Show more