Ep 18. Apocalypse

In Smallville season 7 episode 18, titled "Apocalypse," Clark realizes that his father's prophecy about Zod is coming true: "The day will come when you will have to make a choice between Krypton and Earth." Zod, who has taken over Lex's body, is on a mission to recreate Krypton on Earth and rule over it as a god. To do so, he needs the power of the three Stones of Knowledge, which are hidden throughout the world.

Clark and his friends, Lois and Jimmy, team up to find the Stones before Zod does. Meanwhile, Lana, who is being held captive by Zod, learns that the only reason he wants to recreate Krypton is to bring back his beloved wife, Faora. Desperate to find a way to stop Zod without having to kill Lex, Clark turns to Jor-El for guidance. Jor-El tells him that he must destroy all three Stones to defeat Zod, but warns him that doing so will unleash a great power.

As Clark races against time to find the Stones, he learns that one of them is in the possession of Chloe, who has been declared a terrorist for her involvement in a hacking group. Clark must not only convince Chloe to give him the Stone, but also protect her from the government agents who are after her. Meanwhile, Jimmy, who has been investigating Lex's disappearance, stumbles upon a secret lab where he discovers evidence of Zod's plan.

In a final showdown, Clark and Zod face off in the ruins of the Fortress of Solitude. With the fate of the world hanging in the balance, Clark must make the ultimate choice between his loyalty to his Kryptonian heritage and his love for Earth. The consequences of his decision will change everything.

"Apocalypse" is a thrilling episode that raises the stakes to new heights and sets the stage for the dramatic season finale. With compelling performances by the cast, stunning special effects, and a gripping storyline, it is a must-watch for fans of the series.