When a disillusioned hacker discovers that the world he accepts as real is a virtual simulation, he struggles to develop the power to liberate humanity from its enslavement to computers.

And alternative version incorporating ?the prophesy:

When a disillusioned hacker discovers the world is a virtual simulation, he must struggle to fulfill the prophesy to ?become the one who liberates humanity from its enslavement to computers.

(30 words)

The shocking discovery is the inciting incident even though it ?occurs a half hour into the film and is the transition/threshold event from Act 1 to Act 2.

Fulfilling the prophesy is the expectation placed upon him by Morpheus. ?Is Neo "The ?One"? ?That's the dramatic question Neo and the film must answer.

And alternative version incorporating ?the prophesy:

When a disillusioned hacker discovers the world is a virtual simulation, he must struggle to fulfill the prophesy to ?become the one who liberates humanity from its enslavement to computers.

(30 words)

The shocking discovery is the inciting incident even though it ?occurs a half hour into the film and is the transition/threshold event from Act 1 to Act 2.

Fulfilling the prophesy is the expectation placed upon him by Morpheus. ?Is Neo "The ?One"? ?That's the dramatic question Neo and the film must answer.

Good first draft, but I think it's lacking in Neo's action.

As you wrote the hook is important in this case, but equally is what he does - "...strugles to develope the power...," is too vague and lacks in interest. Perhaps best to include ' the prophecy' so as to alude to the culture that has developed outside of the VR world.

My try:
After a disillusioned hacker discovers the world is a virtual simulation, he must fight the machines that have enslaved all of humanity, as told in a prophecy of the survivors.