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

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.