Watch Smallville S01e (5) › | ESSENTIAL |

This episode marks the first of many times Clark must sacrifice his personal happiness and budding relationship with Lana to fulfill his duty as a protector.

In classic comic book fashion, the villain's name, Sean Kelvin , is a direct nod to the Kelvin temperature scale. Watch Smallville S01E (5)

In , titled "Cool," the series delivers a classic "meteor freak of the week" story while deepening the complex relationships between the main characters. Episode Overview: "Cool" This episode marks the first of many times

Critics noted the impressive visual effects for its time, particularly the "ice flame" scene where candles freeze instantly as Sean passes them. Episode Overview: "Cool" Critics noted the impressive visual

The episode centers on , a high school athlete who falls into an icy, kryptonite-filled lake. He survives but emerges with a dangerous condition: permanent hypothermia that forces him to absorb the body heat of others to stay alive, effectively freezing them to death.