Clark learns Kara is in Washington searching for the crystal. Kara is captured after she breaks into the lab and sedated with a kryptonite-infused truth serum. The serum causes her to relive a prior trip to Earth when she followed Clark's biological mother, Lara, to the Kent farm.
Clark arrives in time to save her but, after searing the machine with heat vision, he also falls victim to the serum and sees what Kara sees: his mother. In this flashback episode, Helen Slater guest stars as Clark's biological mother, Lara-El. The episode also features the evil Zor-El, who was Jor-El's brother and Kara's father.
original airdate--November 1,2007 rating--4.31 million
songs--Theme song--"Save Me" by Remy Zero
Antagonist: Agent Carter
Goofs: The year is supposed to be 1986, but the TV in the Kent's living room when Lara and Kara are there while they're at church, looks very 90's.
Trivia: This is the first time the Isis Foundation is shown up and running, although it was shown in non-operational form in Cure, as well as what its "other" purpose is.