Arrival

S5 E1: After stealing a crystal from Lex, Clark was transported to the Fortress of Solitude. Now, Clark is confronted by his biological father, Jor-El, who tells him he cannot return to Smallville. Instead, Clark must stay and prepare to save the planet. Also transported to the Fortress, Chloe is unable to handle the sub-zero temperature and collapses, begging Clark to use his powers to save her.