Dragonfly is the emotionally charged teenage love story of Natasha and Billy, shy young year 11 students who fall in love and the decisions they make about their feelings. Their friends, karate-wise year 12 students, Wendy and Susan, help protect them. Natasha is practical and helps Billy solve a few problems. Billy is a dreamer, very intelligent but hides this because of a promise made to his mother. Acting as a slow learner his peers call him the village idiot, to prove them wrong he builds an electronic Dragonfly that is a virtual flying spy. On the Christmas break Natasha goes to stay with her father while Billy gets help from Benny in solo power. When Natasha comes to pick him up she sees Benny's granddaughter, Layoni kiss Billy on the side of the face to wish him a happy birthday. Full of jealousy Natasha stomps off, Billy tries to explain but she won't listen. At Benny's mountain retreat, a sexually active Layoni leads Billy astray, while Natasha's girl friend, Jenny tries to recruit her for drug dealer, Angelo. Billy finds out she is seeing Angelo, he becomes jealous and spies on Natasha with Dragonfly.