Plot: Lois arrives back in town as Clark starts his first semester at Kansas University. A trip to Crater Lake turns sour when Lois nearly drowns, Clark attempts to save her but is beaten to the punch by Arthur Curry (later to know as the super hero 'Aquaman'). Arthur, or A.C. to his friends, begins a relationship with Lois, but has another reason for being in Smallville; to stop a new weapon being designed by LuthorCorp that is causing untold deaths in the local marine population. Meanwhile, Clark develops a close bond with his new history professor at Kansas University, the mysterious Milton Fine, who tells Clark of his plans to write a book to bring down the corrupt Lex Luthor.