If civil unrest comes to America, law enforcement will be ready with new, so-called "less lethal" weapons. But are these weapons really safe and effective? Ex-CIA officer Mike Baker puts the weapons -- Tasers, sonic sound and PepperBalls -- to the test. Next, we go underneath the city of Las Vegas where a vast network of storm drain tunnels are inhabited by hundreds of people who have fallen through the cracks of society. Finally, in San Francisco we investigate internet rumors that recycling is really a hoax.

Kari Byron of Mythbusters investigates newly opened Area 51 files and sees jets imitate UFOs. Then, our investigators try to run from police drones in Texas. Finally, Mike Baker goes to California's medical marijuana farms to see how the state handles the inherent challenges of growing marijuana.America Declassified's team of investigators, including special guest Kari Byron from MythBusters, dig into the country's secrets, including Area 51 and marijuana farms.