Memoria

Plot:

Lex is trying to recover his missing memory of the past few months by going to Summerholt, which results in him having flashbacks from his childhood. When Lana finds Lex out on a balcony screaming the name "Julian", she tells Clark. Clark finds out Lex has been going to Summerholt and tries convince him to stop, knowing his secret will be revealed if Lex recovers his recent lost memory. Clark goes to Lionel out of concern for Lex, but the evil Lionel decides to set a trap for Clark when he goes to rescue Lex. Dr. Garner subjects Clark to his memory device, which requires the subject lying in a solution containing Kryptonite. Clark recalls his earliest memory: being put in the spaceship by his mother Lara and her concern as to whether he would be loved or not. Ultimately Clark's body reacts to the solution causing a massive explosion killing Garner and destroying the machine, but Lionel escapes yet again. Lex remembers the truth about his infant brother Julian's death that has a shocking twist and explains Lionel's hatred of Lex and of Lex's mother Lillian. And Clark realizes his real mother loved him giving him a new perspective on his Kryptonian heritage.