are also coming to terms with their father's transition. >> the new series on abc family, "becoming us" shows that another family struggles with the questions. juju chang with the story. >> reporter: caitlyn jenner's reveal last week. a groundbreaking moment for the transgender community. >> i'm the new normal. >> reporter: but if you think it is only celebrities and their families grappling with gender, think again. >> my parents told me they're getting divorced. and then they told me my dad wanted to become a woman. and i was like, huh? >> my name is carly, used to be charlie. now carly. >> reporter: their story is told in the abc family docu-series "becoming us" and follows ben's journey as he grapples with his dad's transition and his family's changing dynamics. >> i'm going to have surgery,