EXAMINE THIS REPORT ON BLUE CRYSTAL MATH

After agreeing to an ultimatum supplied with the cartel, Gus usually takes Mike and Jesse down with him to Mexico, where they've got Jesse educate the cartel experts (led by Benicio Fuentes) how to cook the blue meth. Gus returns from Mexico and his relationship with Walt unravels, triggering Walt to murder Gus and put an stop to Gus's distribution