When an unidentified plane crashes in the fields next to Dunwick Farm in Crooked Oak, it quickly becomes clear that it was carrying some unusual cargo. As people in the town fall suddenly ill and animals start behaving strangely, friends Pete, Krish and Nancy try to find out what was in the glass boxes on board the plane.

But as they uncover the facts, the trio realise that they are becoming entangled in a terrifying web...