Bugs - Season 2 Episode 3 Bugged Wheat

A special sort of wheat, being developed so that it is resistant to all known crop diseases is destroyed by intruders breaking into the European Agronomy Council and spray a viroid over the crop. Beckett goes undercover as a sceintist to invesitigate the viroid and dicovers that the plan is to spray the viroid over crops in the world and then deliver a special anti-viroid, which will save the world from starvation and make the makers of the anti-viroid very rich. Ros, however, has problems of her own, when her car is infested with killer wasps and the brakes won't work, and she can't open the doors...