Dipper and Mabel have spent there entire lives with their naval guard great uncles. While the rest of his family love to talk about the open ocean and the thrill of sailing the seven seas, Dipper prefers to keep his feet on land than join the naval guard, which his sister can't wait until she's old enough to do so. Everything in their lives seemed perfect for the most part. But everything gets torn apart as Dipper gets thrown in the middle of a thrity year feud between Standford and the infamous pirate captain Bill Cipher.