Clark has a chance to share a night out on the town with Lana, thanks to Lex’s matchmaking, but the evening is interrupted when Clark faces an icy enemy, Sean Kelvin
“Cool” introduces us to Sean Kelvin, a Smallville High student who develops the ability to absorb heat from his surroundings after falling into a frozen lake affected by meteor rocks. As Sean struggles with his new condition, Clark must find a way to stop him before he hurts more people in his desperate attempt to stay warm.
This episode does a great job of balancing the “freak of the week” format with ongoing character development. Sean’s tragic transformation into a heat-absorbing villain is a creative use of the meteor rock premise, providing both a physical threat and a metaphor for the “cold” loneliness of high school.
The introduction of the Spring Formal subplot adds a layer of typical high school drama to the superhero narrative. Clark’s awkward position between Chloe and Lana highlights his ongoing struggle to balance his normal teenage life with his extraordinary abilities and responsibilities.
Lex’s storyline with Victoria adds depth to his character, showing us more of his complex past and hinting at the cutthroat business world he comes from. This subplot serves to further distinguish Lex from the more wholesome Kent family dynamic.
The final confrontation is a standout action sequence, showcasing Clark’s quick thinking and resourcefulness in using the environment to defeat Sean. It’s a clever resolution that doesn’t rely solely on Clark’s superpowers.
Overall, “Cool” continues to develop the series’ themes of alienation, responsibility, and the challenges of growing up, all while delivering an engaging superhero story. The episode effectively balances action, drama, and character development, keeping the Smallville formula fresh and interesting.

Notes:
What was with the shaky camera in the opening scene, looks like they gave the camera to one of the kids at the party.
The Farm mortgage is 8.5%… what are we complaining about today.
Sean is Mr Freeze….
So Clark just throws Sean in the lake and thats it, what happens at spring, etc.
These episode endings leave a lot open.
Next Episode: Hourglass – Time control? We shall see next week.
Detailed Plot Breakdown:
- Sean’s Transformation:
- Sean Kelvin falls into Crater Lake during a school trip.
- The meteor rock-infused water gives him the ability to absorb heat, but also leaves him perpetually cold.
- Clark and Chloe’s “Date”:
- Chloe asks Clark to the Spring Formal, catching him off guard.
- Clark agrees, setting up potential tension with his feelings for Lana.
- Sean’s Escalating Behavior:
- Sean discovers he needs to absorb body heat to survive.
- He begins targeting classmates, leaving them in hypothermic states.
- Clark Investigates:
- Clark becomes suspicious of Sean’s involvement in the mysterious “attacks.”
- He uses his x-ray vision to discover Sean’s lowered body temperature.
- The Final Confrontation:
- Sean kidnaps Lana, hoping to use her body heat to stabilize his condition.
- Clark tracks them down to a foundry for the final showdown.
- Aftermath:
- Clark feels guilty about Sean’s fate but is reassured by his parents.
- The Spring Formal storyline is left open-ended, with Clark’s feelings for Lana still complicating his relationship with Chloe.