The Nowhere Boys are back and Luke's attempts to convince the Gang that a new threat is imminent are dismissed – until the threat proves too big to ignore.

As the Gang fights off the latest threat, Jesse's preoccupation with a cyber bully puts their biggest secret at risk. When menacing creatures attack again, the Gang fight back by sending them out of this world – but at what cost?

Nicco jeopardises both the Gang's plan to rescue one of their own and her football ambition - but as Bates closes in, can Nicco redeem herself and save the day?

Bates is on the warpath. Convinced he is close to exposing a conspiracy gripping Bremin High, he interrogates the Gang. Will one of them crack under the pressure? Meanwhile, the arrival of a stranger puts Heath under the spotlight.

With the Guardian in Negative Space, the Gang believe they have saved the multiverse until a catastrophic event at Bremin High suggests otherwise. Will the Gang be forced to expose their powers and magic in order to save the school?