From CW and TV.com:
Clark finally gets his act together, grows up and becomes the twenty-something man he is and stops acting like an angsty, childish, bitch and puts his superhero boots on but not before Lex Luthor comes back and they make wild, passionate, unholy male-on-Kryptonian love that should be illegal in several galaxies. Meanwhile, Tess looks dour and constipated while mulling over a morally dubious choice. Lois natters on and on about pretty much nothing making everyone around wishing they didn't know her. Jimmy Olsen dies. Again. Pointlessly.