Smallville - Season 4 Episode 20 -

In the middle of the night on the road, a young pregnant woman is going into labor while her husband drives on the road when she suddenly glows and implodes, while the husband stops the car and runs for his life. Lana and Clark are driving a truck along the same road and find a baby in the crater created by the explosion. They take the baby to the hospital, and the Kent family temporarily guards him, who is connected to Clark. Lana and Clark give the name of Evan, and on the next day, he becomes a teenager, precociously aging. The scientists of Lex study the case and ...