I Just Don’t Get…OH NOW I REALLY GET IT!!!

MAD MEN. I tried watching it 2 yrs ago but I had missed several episodes.I didn’t know what was going on. I skipped last season entirely. Now, I’ve tried again, but I’m lost. Yes, Jon Hamm looks very good, very handsome, like a real man, & they have sex. But I still don’t get it.
UPDATE: Feb.20.2010. SORRY, I GET IT NOW; IN FACT, I ABSOLUTELY LOVE IT! I finally binged watched. I must admit how absolutely wrong I was! The writing, acting, camera work and production design are superb! MAD MEN is the best! FANTABULOUS!