 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 (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.