They're the world's greatest heroes! The grim avengers of the night! The planet's first line of defence against supervillains and alien threats! They're . . . the Bug Brigade! Doug, Josie, Kira and Reginald were all normal school kids at the start of their field trip to the Blue Mountain Science Museum. Proud members of the Bug Society of Littleton, the friends are thrilled to explore a private wing of the museum where they can learn all about their favourite insects. But when they get mixed up in a scientist's experiment involving radioactive bugs, they find themselves in over their heads...