Saint Judy tells the story of Los Angeles immigration attorney Judy Wood, who changed United States asylum law to include women to be a part of the protected class. Wood's victory is believed by immigration advocates to have saved the lives of tens of thousands of female immigrants around the world.

The film starts her move with her son from New Mexico to Los Angeles so her son can be closer to his dad, her work in an immigration law office, then in her own law office and in particular the case of an Asefa Ashwari, a teacher from Afghanistan facing deportation to her win in the 9th Circuit.