Sara Marconi has made her way from Philly to "the Rock," a remote island in Alaska governed by the seasons. Her mother's death left her unmoored, with a seemingly impassable rift between her and her father. But in this majestic, rugged frontier she works her way up the commercial fishing ladder -- from hatchery assistant all the way to king crabber. Disciplined from years as a young boxer, she learns anew what it means to work, to connect, and -- through an unlikely old tugboat -- how to make a home she knows is her own.