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Full Episodes

S 1 E 5

The Code is Cracked

Aired on Dec 12, 2017

Sal and Ken investigate San Francisco, the epicenter of the Zodiac Killer murders, as the Code Team announces extraordinary news: A team member has solved the Zodiac’s infamous Z340 code, which has eluded codebreakers for 50 years.

S 1 E 4

The Secret FBI Files

Aired on Dec 05, 2017

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

S 1 E 3

A New Code Uncovered

Aired on Nov 28, 2017

The hunt uncovers a mysterious new cipher related to the Zodiac Killer, while the team’s 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.

Murder Mystery

A Timeline of the Zodiac Killer

The elusive killer was never found READ NOW
First Look

Exclusive Documents from a Zodiac Killer Reporter

Follow leads, read articles and try to crack the case READ NOW
Mystery-Solving Tech

Supercomputer Programmed to Think Like Zodiac Killer

No wonder its poetry is so creepy READ NOW

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