In 1989, known as Mendax, Julian Assange and two friends formed a group called the International Subversives. Using early home computers and defining themselves as white hat hackers - those who look but don’t steal – they broke into some of the world’s most powerful and secretive organisations. In the eyes of the US Government, they were a major threat to national security.

When a detective is called in to investigate the roadside execution of his partner, he discovers at the crime scene a data card from a video camera. The card contains footage shot by two runaway teenagers who are making a documentary about the drug related death of a sibling. The detective retraces the teen's journey and soon begins to uncover a trail of the dead that leads all the way back to police headquarters.

Fiona and Oliver's relationship is tested when her terminally ill brother moves in with them. Tyson is faced with a difficult decision and needs his sister's support, but has he asked too much of her?