After Tuco beats up Heisenberg’s partner Jesse Pinkman and steals the meth he made. Heisenberg decided to pay Tuco a visit by coming over to his head quarters and asking Tuco for 50 thousand dollars and when Tuco say that his plan is stupid and that he just brought more meth. Heisenberg responds by telling Tuco that he got one part wrong that this is not meth and then he threw the meth bomb at the ground, which blows up the whole place.