Eighteen-year-old Rosina May leads a relatively sheltered life on the Thames, but when her father’s feud with another bargeman spirals out of control, her world changes forever. To save her family, she agrees to marry Harry, a wealthy merchant’s son, but her heart belongs to a mysterious river pirate. After her father’s death, Rosina is cast out and forced to fend for herself on the river — yet she can’t forget her pirate, and soon she must decide what sacrifice she’s willing to make for love.