Skilled young captain Simon Levine helps his uncle, Titus Levine, earn $568,000 at sea. However, he receives only $30,000 in return, while his parents are mistreated. Striking out on his own with an old boat, he makes huge catches through talent and grit. Titus hires someone to impersonate Simon, but they fail. Simon builds a fishing empire from scratch and leads his hometown to prosperity.