Kaz plans a surprise birthday party for Oliver and accidentally lets in the villain Revengeance.

Oliver enlists a mind-altering superhero named Neocortex to help him become more carefree and spontaneous like Kaz. When the brainwashed Oliver is too reckless during a crisis, Kaz is forced to step up and be the responsible one.

Kaz searches for a flash drive, thinking it contains Oliver’s study guide for a test, but it turns out to be a digital jail storing a villain named Wi-Fi. When Kaz plugs the drive into his laptop, Wi-Fi enters the physical world and simultaneously pulls Kaz into the computer.

A man from the future visits the boys and reveals himself as Kaz twenty-five years from now. Future Kaz warns the boys of an evil villain wreaking havoc on the future.