Lois tells Clark she needs to talk to him privately about a cinnamon bun. Mmm, Cinnabon. Lois asks Clark what he's doing, saying she already has an overprotective dad (IRONSIDE!) and doesn't need a brother. Clark asks if he's the only who thinks there's something "fishy" about this guy. Keep throwing on the seaward dialogue, Smallville. I can take it. Just don't be surprised if I use my own c-word. Lois tells Clark to quit being a jerk. Lois apologizes to Aquadude for Clark's behavior. He tells her he's "gotta bounce." Lois asks if he needs company. Sure, just leave your job in the middle of a shift. Aquadude says he needs to take care of some stuff on his own, and that he'll swing by later. Wait, that's Tarzan's line. Clark tells Lana and Lois that he was being a jerk, and goes to apologize. Lois tells Lana she doesn't know how she puts up with Clark. Awkward silence.
A tunnel. Aquadude has swum up to it, and pulls himself up to the surface. Clark superzips into the scene, watching Aquadude go.
A laboratory. Aquadude removes a conveniently unbolted steel grate from the floor and climbs up from the water below it. He's got a backpack with him. This is the home of the WBD. Aquadude looks through some LuthorCorp documents that are just lying around on a table. He opens his backpack, removes a Ziploc bag and turns on some sort of device he was storing inside. It's an explosive. Aquadude gets back in the water hole to escape. He hears something zip into the room. Clark sees the ticking device and superspeeds to it. He hugs it to his stomach, and the thing explodes, sending water everywhere, but leaving the lab intact. Clark looks over. Aquadude is gone.