When did Lana find out about Clark having powers in Smallville?!
Question: Lana saw Clark use his powers in the episode "6.16 - Promise", but in the season six finale, he explained to Lana he had powers and that he was an alien. I hope that helps.
Answers: Lana saw Clark use his powers in the episode "6.16 - Promise", but in the season six finale, he explained to Lana he had powers and that he was an alien. I hope that helps.