In 90-year-old Leo Bretholz’s battle against a French railroad, Akin Gump Strauss Hauer & Feld might be his last hope.

The firm is providing pro bono counsel to Bretholz and about 250 Holocaust survivors and their relatives in the United States seeking an opportunity to bring claims in U.S. federal court against Société Nationale des Chemins de fer Français, also known as SNCF. Bretholz and more than 75,000 people — mostly Jews — were transported by SNCF trains to Nazi concentration camps, according to Akin.