Smallville 101: What happens when a Kryptonian gets a splinter from a meteor rock?After a surprise visit to Lana at Met U leads to cutting his finger on silver kryptonite, Clark begins to suffer from hallucinations and paranoia. He proceeds to wreck the truck for the fourth time (lol), distrust everyone around him except Lana (WHY?!) and even punches his mom (nice). Meanwhile, Lana is now an overnight genius that somehow lands a partner deal with Lex about his secret science projects. GTFO.James Marsters (Buffy: The Vampire Slayer, Runaways) special guest stars as recurring season four character Dr. Milton Fine.