In the last season, Rona killed someone in self-defense with an elemental stone... The contamination of the element triggered a meteor rock to hit the Earth directly into a small town --- Smallville. What did Ronna see after the tragic crash while on the run? On the other hand, Clark disappeared into the cave for no reason but appeared in the heart of Antarctica... Did Chloe and LEX discover Clark's secret? ... In this season, the answer to all the mysteries....