The Day of the Triffids
Season 1, Episode 2: Episode 2
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As the Triffids destroy Britain, Bill works with his father to clone a genetic mutation which will sterilise them all. Bill's future with Jo is wrenched apart with the arrival of Torrence from a London which has been overwhelmed. To escape, they will have to run the gauntlet between Torrence and the Triffids.
