you good see this episode from the beginning and because if you start to watch it any later and you will be confuse a to what be happen to clark life . yet and that be the twist while clark be stick in an alternate reality . lana be devote to him . lex lose most of his leg and be in a wheelchair due to the bridge accident when he swerve to miss clark in the pilot of the series . martha be marry to lionel . about the only constant be his most loyal friend chloe and who still believe in who he be . and and oh yeah and he doesn not have any superpower . he be in a mental institution for put himself in a fantasy world where he do have power and and be ridicule for believe so . aside from chloe and there be one mysterious figure who believe in clark represent a black man who in the alternate reality be also a resident of the institution and who believe he be from mar . clark must stay true to everything he believe be actual reality and and not get brainwash by the institution psychiatrist and who be in fact the fourth phantom zone escapee . this episode be utterly mind blowing and shocking . plus and it provide a fresh twist from the usual type of smallville episode .