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.

Desperate to get Felix's book back, the Gang search for Zeb, the mysterious stranger. But when Luke is kidnapped, they all find themselves drawn into a dangerous trap.