Root Cause

Corvina Guerra is a flying winemaker who dreams of one day settling down in her native Italy on her family’s vineyard. On a visit to a vineyard in Italy, Corvina makes a startling discovery: Phylloxera, a menacing plant louse that devastated vineyards in Europe more than a hundred years ago, has infested the vines.

After reporting her findings to her company, Universal Wines, Corvina is charged with investigating the spread of the bug. Nicknamed Philome...