The hunt uncovers clues that the Zodiac Killer may have served in the U.S. Armed Forces, as the team's supercomputer identifies symbols in the killer's code that only a few would know.
Subtitles: English
Season 1
S01:E01 - The New Suspect
A new hunt for the Zodiac Killer gains unprecedented access to files, unearthing a complicated cypher that may contain the killer's name. A prime suspect with code training emerges.
S01:E02 - The Military Connection
The hunt uncovers clues that the Zodiac Killer may have served in the U.S. Armed Forces, as the team's supercomputer identifies symbols in the killer's code that only a few would know.
S01:E03 - A New Code Uncovered
The hunt uncovers a bizarre new cipher related to the Zodiac Killer, while the team's supercomputer uncovers a weird lunar pattern linking the killings. A second prime suspect emerges.
S01:E04 - The Secret FBI Files
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.
S01:E05 - The Code Is Cracked
Sal and Ken investigate San Francisco, the epicenter of the Zodiac Killer murders, as the Code Team announces extraordinary news.
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