Armored cars and heavily armed deputies from the Santa Clara County Sheriff's Office descended on a Morgan Hill home Wednesday.
When the smoke cleared, 12 people were in handcuffs and thousands of pot plants were confiscated. More than 20 firearms were also confiscated.
Neighbors on Dougherty Avenue were startled by the county's Marijuana Eradication Team officers swarming the property.
NBC Bay Area's Robert Handa has more in the video report above.