 Lois Lane returns to Smallville, and while swimming in the Crater Lake, she drowns and is rescued by Arthur Curry, a student of the Miami University. The have a crush for each other, but Clark Kent is suspicious of AC since he noted his abilities underwater. AC discloses to Clark that Lex Luthor is developing a weapon to the navy that is a menace to the marine life. Clark in principle does not believe on AC, but later he realizes that his fears are correct and he helps AC to sabotage the experiment of Luthorcorp. Meanwhile at Kansas University, Clark becomes close to his Prof. Milton Fine, a man that is writing a book about the evilness of the Luthors.