Stars of the show including lead actor Bryan Cranston, Dean Norris and Aaron Paul unveiled the new clip at a special panel at the San Diego convention yesterday (July 13).
The three-minute clip opens with Cranston and Paul's characters in a showdown with Jonathan Banks, who plays hitman Mike Ehrmantraut on the show.
When asked about what is in store for the upcoming season, Paul revealed that the story will get "much heavier" as Cranston's character deals with the repercussions of season four.
The new season of Breaking Bad premieres tomorrow (July 15) on AMC in the US.
Watch the new trailer for Breaking Bad below (Contains spoilers):