Breaking Bad is an exceptionally well produced television drama series on AMC. This Wikipedia synopsis sums it up pretty well.
Breaking Bad is the story of Walter White, a struggling high school chemistry teacher who is diagnosed with advanced lung cancer at the beginning of the series. He turns to a life of crime, producing and selling methamphetamine with a former student, Jesse Pinkman, with the aim of securing his family’s financial future before he dies.
It’s probably one of the best series I’ve ever watched as far as TV shows go, and I would wholeheartedly recommend it to anybody. The easiest way to start watching it would be on Netflix, as they have Seasons 1 through 3 available through their streaming service. Season 4 finished up around the end of last year, and I think the only way you’ll be able to easily get your hands on that right now is by torrenting it. If you don’t have Netflix, you can just as easily get the first 3 seasons through torrent sites as well. Season 5 is going to be airing sometime later this year and will be the final season of the show, so now would probably be a good time to catch up on it.