Thanks to Lex's matchmaking, Clark and Lana plan a night on the town. Their evening is interrupted by a cold killer. A kryptonite-altered teen seduces women so he can use their body heat to survive. Chloe's his next target.

Who is Sean? Sean is a Smallville High football player. One evening he falls through the ice, trapped below in the frigid kryptonite-tainted water. He emerges hypothermic and stronger the next morning, absorbing heat to survive. He quickly realizes that body heat can keep him warm. He meets Jenna at her house. She warms up the shower in invitation. Sean shows up blue in the face. He kisses her, turning her into a popsicle.

What's up with Chloe? Chloe has a crush on Sean. She plays a little hard to get, and Sean quickly pursues other girls. Later Sean calls and they plan to meet at the coffee shop. Frozen Sean shows up at school, trapping Chloe by freezing the pool.

What's up with Lex? In financial trouble, Mom wants Dad to attend an investment meeting at Lex's with her. At the Luther mansion, Lex offers financial help in the form of a partnership to the Kents in gratitude to Clark saving his life. The Kents takes out a bank loan, Jonathan still mistrusting Lex.

What's up with Lana? Lex tells Lana he thinks she's with the wrong guy. Whitney blows off their plans in Metropolis to watch the fight on pay-per-view with friends. Lex knows this, and suggests Clark ask Lana to the Radiohead concert, with Lex providing the tickets and limo. Clark asks Lana to go "just as friends." She accepts.

What's up with Clark? In the limo on the way to the concert, things are going pretty well, until Lana and Clark see the TV news report that the police are seeking Sean in the death of Jenna. Clark rushes to the coffee shop, knowing Chloe is in danger. At school, Clark arrives just in time to free Chloe from the frozen pool. Sean gets away. In all the excitement, Clark left Lana at the coffee shop. Whitney shows up at the coffee shop and takes Lana home. As they drive in Whitney's truck, Lana tells Whitney she was with Clark.

How it ends: Sean gets a jolt of energy and heat from electrical cables, causing a blackout in town. As Lana and Whitney drive home, they see Sean in the middle of the road and swerve into a ditch to avoid running him down. In the accident, Lana twists her ankle and Sean disappears. Whitney helps Lana to the safety of the nearby Luthor mansion. Clark finds Whitney's truck. Sean grabs him, absorbing his body heat, leaving Clark frozen in the road. Next Sean absorbs heat and energy from the mansion's generator. Mrs. Kent goes out the check the generator as Sean approaches. Clark arrives just in time to send Mom inside to safety. Sean and Clark fight. Clark flings Sean into the Luthor's pond and he freezes below the ice.

Clark and Lana: Clark apologizes for the evening. He asks for another date, but Lana already has a date with Whitney, saying she and Clark are just friends. Lana ironically tells Clark she goes out with Whitney because "whenever I need him, he's there, he makes me feel safe."