Z-67: Difference between revisions
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The red [[Osgood Box]] supposedly contained Z-67 that would be released if the humans chose the "winning" button. However, this was a feint by the Twelfth Doctor, and the box was empty. ([[TV]]: ''[[The Zygon Invasion (TV story)|The Zygon Invasion]]'', ''[[The Zygon Inversion (TV story)|The Zygon Inversion]]'') | The red [[Osgood Box]] supposedly contained Z-67 that would be released if the humans chose the "winning" button. However, this was a feint by the Twelfth Doctor, and the box was empty. ([[TV]]: ''[[The Zygon Invasion (TV story)|The Zygon Invasion]]'', ''[[The Zygon Inversion (TV story)|The Zygon Inversion]]'') | ||
[[Category:Bioweapons]] | [[Category:Bioweapons]] | ||
[[Category:Operation Double]] | [[Category:Operation Double]] | ||
[[cy:Z-67]] | |||
Latest revision as of 02:49, 27 February 2019
Z-67, also known as Sullivan's gas, was a nerve gas that unravelled the DNA of Zygons, essentially turning them inside-out. If released it would create a chain reaction in the atmosphere, such as that a single use would kill all Zygons on an entire planet.
Z-67 was developed by UNIT naval surgeon Harry Sullivan at Porton Down, working on Zygon prisoners captured from their attempted invasion in the 1970s/80s. The Doctor, whose twelfth incarnation later called Sullivan an "imbecile" for creating it, confiscated the gas and the formula from UNIT.
The red Osgood Box supposedly contained Z-67 that would be released if the humans chose the "winning" button. However, this was a feint by the Twelfth Doctor, and the box was empty. (TV: The Zygon Invasion, The Zygon Inversion)
