Episode 1

Plot
Four Year 10 students — Andy Lau, Felix Ferne, Jake Riles and Sam Conte— are forced to buddy up for an orienteering exercise in the rugged Bremin Ranges, on the outskirts of their hometown, Bremin. The boys are from very different friendship groups and do not really get along, so when they are expected to collaborate they are not happy. Halfway through the orienteering course, they decide to take a shortcut that very quickly gets them lost.

Andy, Felix, Jake and Sam must put aside their differences and work out how best to survive the night. As a freak lightning storm takes hold, the boys' fertile imaginations run amok. But there is really something out there. A ferocious, snarling thing stalks the boys from the undergrowth.

For Andy, a diehard nerd stifled by his family's over-protectiveness, getting lost is an opportunity to prove himself as a man of action and follow in the footsteps of his hero, Bear Grylles. Being an outsider is nothing new to Goth Felix, who is more than willing to embrace the weirdness of the situation. Alpha jock Jake uses a bullying demeanour to cover his vulnerability, while golden boy Sam — for whom nothing ever goes wrong — doesn't see the seriousness in their predicament.

The boys finally manage to make it out of the forest — alive and triumphant — with help from eccentric bushman Roland Murphy. Upon their return to Bremin, the boys discover that no one seems fazed by their disappearance. Where are their anxiously waiting families? Where are the TV crews? Something has changed.

Felix is shocked and delighted to discover that his younger brother, Oscar, is no longer wheelchair-bound, but Oscar doesn't seem to know who Felix is. The others also return to their homes and families to find that things are not as they were. Has something happened to Bremin while the boys were lost in the forest? Or has something happened to the boys?