Ep 21. Prototype

Clark must tap into his true hero potential when he comes face to face with a young woman who has gained control over her physical form. With the help of Chloe and Lana, Clark sets out to stop her from using her powers for evil. As they work to stop her, they discover that someone else has been manipulating her and her powers.

Meanwhile, Lex continues to experiment with the serum he's created, hoping to harness the power of a Kryptonian. His experiments take a dark turn, and he finds himself becoming more and more paranoid as he tries to keep his secret safe.

As the young woman's powers spiral out of control, Clark realizes that he must risk everything to help her. With Lex closing in on him, Clark may finally be forced to reveal his true identity to the people around him.

In the end, Clark must confront the consequences of his actions and decide whether he's truly ready to embrace his destiny as Superman.