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, searing the machine with heat vision, he also falls victim to the serum and sees what Kara sees: his mother. Written by
Did You Know?
Unlike Clark's Kryptonian ship (which was designed to hold him as an infant), Kara's ship was big enough to hold her entire family. It is basically the same size as Milton Fine/Braniac's ship from season 5, which also carried both Nam-Ek and Aethyr to earth in Season Four's Commencement. See more
In the scene where Clark and Kara are about to open the picture in the Kent kitchen, when the scene opens the picture in the frame is just of Martha, but as Clark picks the frame up and flips it over you can clearly see a picture of Jonathan and Martha. See more
Special Agent Carter
I want to know about your home planet.
You're on it. It's called Earth.