In the quiet Australian country town of Mackaroy, something really strange is happening. The school's principal has disappeared, the whole town's internet keeps crashing every night, and people are being watched. Someone, or something, is keeping tabs on everyone who lives there, and best friends Tang and Mitch are on the case. The 14-year-olds have an online show investigating conspiracies, but what they don't realize is that someone really doesn't want them to find out the truth. This will be their toughest investigation yet.
A simple investigation into Mackaroy's data dropouts soon leads Tang and Mitch to discover a massive conspiracy that may affect their whole town.
Tang and Mitch try to find out more about Zach, but Tang’s impatience to get answers ends up putting both hers and Mitch’s lives in danger.
Zach joins the team, but Tang and Mitch soon realize they still have to watch what they say in front of their new friend.
Mitch embarks on a treasure hunt to secure a scholarship with the tech giant JAFFLE, while Tang is determined to find out what Mr Pollock is up to.
Tang, Mitch and Zach realize their mystery caller may be the key to finding out what's going on in Mackaroy.
Tang has her story, but their powerful enemy is doing all they can to stop her publishing it. Meanwhile, Mitch is worried about Zach's safety.
With Zach kidnapped, Tang and Mitch's only goal is to rescue their friend; but time is quickly running out.
Tang and Mitch enlist Alex to help them bring the old Zach back, but Madeline's not going down without a fight.