As the Guardians assemble to stop the Sourcerer from destroying the internet from within, they realize there's a chance they could save him.

The Guardians travel to the Deep Web to shield Judy from a cyberscam. Austin comes face to face with the Sourcerer and discovers a shocking truth.

When Hexadecimal and Megabyte stage a breakout from Virusylum, Tamra and Austin are caught in the crossfire -- and the Guardians go to Rowin for help.

A newly freed Megabyte takes control of Social Media City while the Sourcerer makes his way to Quantum Heights. Trey starts thinking about college.

Shari steps inside Enigma's suit -- and into serious trouble -- when she accidentally gains access to Room 0. Can the Guardians get her out alive?

When the Sourcerer ups his dark game by attempting to launch a nuclear warhead, Rowin goes rogue and asks the Guardians to stop him.

As the Guardians race to stop a potentially damaging rap video from going viral, Parker learns the truth about Trey and Vera's relationship.

While Parker works to impress Vera, a desperate Megabyte tries to prove his value to the Sourcerer by turning a children's toy into a weapon.

The Sourcerer sends an army of zombie bots to crash the internet. Meanwhile, Austin begins to suspect that his father's death wasn't an accident.

After the Sourcerer hacks into the cellular network to locate the Guardians, Tamra goes head to head with Hexadecimal -- and recovers a second sphere.