Smallville S3E19 E19

Season 3 · Episode 19

Smallville: E19

First aired 2004-04-28

Watch S3E19

Believing that key information about his father's past was lost when his memory was erased, Lex decides to join an experimental program with Dr. Garner to regain the information so he can turn his father over to the FBI. Knowing that Lex will discover his secret if he regains his memory, Clark tries to stop him but is caught by Lionel and the doctor and exposed to the same radical treatment so that Lionel can solve the mystery of Clark's past.

Smallville — Season 3 Episodes (22)