KryptonSite has some spoiler details on "Commencement", the season finale episode of "Smallville" which airs May 18th on The WB. Amongst the various things on offer this episode (MAJOR SPOILERS AHEAD):

- "The episode's teaser starts at a NASA observatory base, as a tech sees something that seems impossible - a meteor shower is headed straight for Earth! Oddly, this blip didn't even show up on the screen 10 minutes earlier"

- "Lionel has a seizure and it looks like veins of green energy crackle and branch from one of the crystals all over his body. This renders Lionel unconscious, and Lex has a security guard take Lionel away"

- "Clark goes to the caves with a blood-stained element, and puts it in the keyhole"

- "A huge meteor crashes into the Kent house, while Jonathan and Martha are in it"

- "Lana is in a Luthorcorp chopper, meteors start falling from the sky, making the chopper swerve through the air. Sounds like another meteor shower is coming! A meteor slams into the tail of the chopper that has Lana in it, and it goes spinning"

For a complete list of all the goss, click here and then hit the 'spoilers' section.

Thanks to 'PK'.