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Invasive SpeciesEpisodes

    Episode 5

    5/5Fran's village has been overrun by knotweed - but one neighbour remains unaffected.

    Episode 4

    4/5Fran's theories about the spread of knotweed put her at odds with her fellow villagers.

    Episode 3

    3/5The specialists have completed their treatment but Fran's sense of relief is short-lived.

    Episode 2

    2/5Fran's anxieties prove well-founded as knotweed spreads from her neighbours' gardens.

    Episode 1

    1/5As global temperatures rise, something stirs in the undergrowth of an affluent village.