Zod
After Clark discovers how much knowledge the fortress has stored, he decides to drop out of college and instead go to “Kryptonian college.” It’s free, the commute is fast (thanks to the cave portal), and the Kryptonian knowledge is vast compared to what the people of earth know. He has the perfect balance going, able to work on the farm and be with his friends, and also gaining a worlduniverse-class education.
During his lessons, he discovers information about Krypton’s woes, and how it dealt with criminals like Zod. This episode takes Clark on a virtual reality trip through the life of Zod, and we learn about his role in Krypton’s downfall. Krypton was advanced in many ways, but also dealt with many of the same issues earthlings have to wrestle with.
At the same time, we cut to Lex’s current interests in politics and watch as he manipulates others to gain power, much like the story Clark is seeing about Zod. At the end of the episode, it’s clear Lex is very similar to Zod, but key differences may mean the difference in his success, where Zod failed.