The academy students begin to vanish after receiving an operating system upgrade. The Davenport group puts their lives at risk when they face off against the vanished students' captors - a nefarious duo they recognize from their past.
Chase and Donald create a new, groundbreaking energy source and unveil it to the world. Meanwhile, Kaz and Oliver infiltrate the academy in hopes of Kaz finally obtaining powers.
Donald, Tasha and Leo must try to reach the human sides of the bionic teens when Douglas uses the Triton App in their bionic implants to set them against their own family.
Having won an initial battle against Giselle and Troy, the bionic team scrambles to find the abducted Chase before Giselle has time to cut him open for his bionic chip.