"Arctic" Offical Description

The CW has released the description for the season finale, “Arctic”.

LEX DISCOVERS CLARK’S SECRET — Kara (Laura Vandervoort) tells Lex (Michael
Rosenbaum) he is destined to defeat the Traveler and offers to take him to the
Fortress to learn how. Clark (Tom Welling) is stunned that Kara would go to Lex
but it is revealed that Brainiac is impersonating Kara and she’s actually
trapped in the Phantom Zone. Chloe is arrested by the Department of Domestic
Security and Lana awakens from her comatose state. Meanwhile, in an epic turn of
events, Clark and Lex face off in the Fortress and Lex learns Clark’s secret.
Erica Durance and Aaron Ashmore also star. Todd Slavkin directed the episode
written by Don Whitehead & Holly Henderson (3T6320).

It kind of explained the whole finale right there in the description.
“Kara trapped in the Phantom Zone”, it would be cool to it again, because I like this interpretation of it. The “Lana awakens” has me grigging, once again Clark is going to stop what must do, like he flat out said this Thursday, that I wanted to hit him with a Kryptonite bat, as always they pull a Clark is happy, then something else terrible happens to Lana, which I don’t mind, love it when they torture that character, then BDA does something stupid that puts the world at risk. Hopefully this will be the last time he does it, since Smallville is coming to an end.