In WHAT WE LEAVE BEHIND, Iliana Sosa chronicles her grandfather’s last journey from his home in rural Mexico to his family in El Paso, a bus ride he’s made every month for decades. In the process, Sosa also documents 50 years of changing immigration policy, xenophobia, and intergenerational trauma. It's an intimate and lyrical portrait that serves not only as a paean to her grandfather but what it means to be a family united, despite the borders that try to divide.