Once you break bad, you never go back.

So teases the following trailer for season four of Breaking Bad, which debuts to AMC on Sunday, July 17. While the video doesn't spoil much, we can report that the upcoming set of episodes will focus on:

• Jesse's reaction to offing Gale.
• The in-depth involvement of Skyler in Walt's business.
• An even darker Gus Fring and his showdown with Walt.

TV Fanatic will cover episode episode of TV's best drama once it returns, and we're excited to present the following preview to readers who love this show as much as we do:

Matt Richenthal is the Editor in Chief of TV Fanatic. Follow him on Twitter and on Google+.