In 1996, in the sophisticated boarding school Excelsior Academy, the outcast teenager Duncan is betrayed by his best and only friend Lex Luthor that wants to get close to the bullies Oliver, Alden and Geoffrey, leading Duncan to a tragic accident. Ten years later, in a school reunion, Alden has a mysterious fatal accident and then Geoffrey has another mysterious death. Oliver suspects of Lex, but when Lana has a serious accident in the Luthor mansion, Oliver tells Clark the fate of Duncan and Clark seeks Lionel to get more clarifications about what happened with the teenager.
In "Reunion", it is disclosed why Lex and Oliver are enemies. Their animosity and rivalry began more than years ago, when Oliver was a bully and Lex a disloyal teenager. At least, this experience affected Oliver, changing his behavior in the society and making him a good man. My vote is seven.
Title (Brazil): "Reunião" ("Reunion")