Story

Around the world, people consume billions of gallons of milk every day; a cow-milking parlor; pasteurization; a three-story milk evaporator; milking a yak; the world's largest butter churn; yogurt.

The story of tuna, the most popular fish in the American diet; fishing and canning operations; a single tuna can net as much as $100,000 in the world's largest fish market in Tokyo; efforts to save the giant bluefin tuna tuna from overfishing.

Some say pigs are as smart as 3-year-old humans; turning pigs into bacon, ham, ribs and sausage; boar semen collection; the use of pig organs in medicine.

The turkey is the centerpiece of Thanksgiving dinners and one of the dumbest birds in the animal kingdom, but it has managed to survive since the dinosaurs; Butterball factory; turkey hunting; dining on turkey testicles and eggs.

Fairgrounds fried classics such as funnel cakes and churros; frog legs; Twinkies and Coke; forging a cast iron frying pan; Kentucky's World Chicken Festival.

Distillation of spirits represents art, science, and vapor-water marriage in a billion-dollar business; visit brandy, liqueur, moonshine, and absinthe distilleries including Christian Brothers, Deep South moonshine, and French Courvoisier Cognac.

Investigators gain unprecedented access to files, unearthing a complicated cypher that may contain the killer's name as well as links between the Zodiac Killer and an unsolved case; a prime suspect with code training emerges.

The team uncovers clues that the killer may have served in the U.S. Armed Forces, as the supercomputer identifies symbols in the code that would have been known to only a few when it was written; Sal and Ken find new evidence.

The team uncovers a mysterious new cipher related to the Zodiac Killer, while the supercomputer uncovers a strange lunar pattern linking the killings; a taunting riddle by the killer may lead to a body; a second prime suspect emerges.

The hunt goes into high gear as the FBI releases secret files on the killer; a handwriting analyst connects the Zodiac's letters to a taunting letter mailed 3,000 miles away in Albany, N.Y.; the code team has a massive breakthrough on the Z-340.

Sal and Ken investigate San Francisco, the epicenter of the Zodiac Killer murders; the Code Team announces a team member has solved the Zodiac's infamous Z340 code, which has eluded codebreakers for 50 years.

The serial killer known as Zodiac terrorizes residents of the San Francisco Bay Area while taunting police; investigators use DNA technology to identify a new suspect in the crime spree.

"The Amityville Horror" book and series of films are inspired by a family's claims of paranormal activity in their Long Island home.

A terminal illness impels Ronald DeFeo Jr. to tell the whole story of the Amityville murders to renowned psychic Jackie Barrett.

Investigators gain unprecedented access to files, unearthing a complicated cypher that may contain the killer's name as well as links between the Zodiac Killer and an unsolved case; a prime suspect with code training emerges.

The team uncovers clues that the killer may have served in the U.S. Armed Forces, as the supercomputer identifies symbols in the code that would have been known to only a few when it was written; Sal and Ken find new evidence.

The team uncovers a mysterious new cipher related to the Zodiac Killer, while the supercomputer uncovers a strange lunar pattern linking the killings; a taunting riddle by the killer may lead to a body; a second prime suspect emerges.

The hunt goes into high gear as the FBI releases secret files on the killer; a handwriting analyst connects the Zodiac's letters to a taunting letter mailed 3,000 miles away in Albany, N.Y.; the code team has a massive breakthrough on the Z-340.

Sal and Ken investigate San Francisco, the epicenter of the Zodiac Killer murders; the Code Team announces a team member has solved the Zodiac's infamous Z340 code, which has eluded codebreakers for 50 years.

The serial killer known as Zodiac terrorizes residents of the San Francisco Bay Area while taunting police; investigators use DNA technology to identify a new suspect in the crime spree.

"The Amityville Horror" book and series of films are inspired by a family's claims of paranormal activity in their Long Island home.

A terminal illness impels Ronald DeFeo Jr. to tell the whole story of the Amityville murders to renowned psychic Jackie Barrett.

Investigators gain unprecedented access to files, unearthing a complicated cypher that may contain the killer's name as well as links between the Zodiac Killer and an unsolved case; a prime suspect with code training emerges.