Watch Jess + Moss for Free: How to Stream the Movie Online at 123Movies. . Jess, age 18, and Moss, age 12 are second cousins in the dark-fire tobacco fields of rural Western Kentucky. Without immediate families that they can relate to, and lacking friends their own age, they only have each other. Over the course of a summer they venture on a journey exploring deep secrets and hopes of a future while being confronted with fears of isolation, abandonment and an unknown tomorrow.