When the school unwittingly uses red meteor rocks in its class rings, Clark experiences a new meteorite effect: Stunning his friends and family, he becomes a rebellious and dangerous teenager who uses his powers for malevolence instead of good. Jonathan and Martha scramble to find an explanation for Clark's behavior before he exposes his true identity to the world. Meanwhile, Lana is drawn to the "new" Clark, who openly declares his love for her.
Shawn and Angela break up and Mr. Feeny is offered a job as a professor at Pennbrook college.
Piper and Phoebe devise a plan to recover Leo.
When a kidnapped woman misdials a cell phone number and begs for help, the CSIs must find her before it's too late. Trying to determine the missing woman's location, the team must track down who she meant to call. Meanwhile, Horatio helps Marisol when she must make a difficult decision about the future. Also, Ryan gets Delko's permission to ask out Natalia, much to her surprise.
Spencer and Ashley have been together for months, and they couldn't be happier. Or could they? When an old tape of Ashley and Aiden surfaces, it looks like she might have been way happier back then. Meanwhile, Clay and Chelsea both come to a decision about the baby. Too bad it's not the same decision...
