Red Kryptonite, Metallo’s return

Can you give us ‘Smallville‘ fans any scoop on how the Red Kryptonite ties into Metallo’s return? – Mickey
You know how Clark usually makes a mistake when “on” Red K? Well, the April 16th episode, “Upgrade,” is no different – save for the ominous fact that this time around, his reckless gaffe on a grander level, involving the Fortress, Zod and Metallo.

In the ‘Smallville’ episode “Upgrade,” are both Zod and Clark infected with Red Kryptonite? – WendySue
Nope, Zod is spared infection. Speaking of ‘Upgrade,” I’m hearing that Brian Austin Green is extra-awesome in his encore… and that he has some moments with Erica Durance that will ruffle a certain fan base’s feathers.

Source: Fancast