Smallville

Season 7, Episode 14

Episode Title: Traveler

Air Date: 2008-03-20

Overview:

Lionel has Clark kidnapped, and when Chloe and Lana confront him, he makes them think Lex is the culprit. Chloe and Lana then beg Jor-El to restore Kara's memory because she's the only person who can rescue Clark.