"By 1942 most of Europe was under the heel of the Nazis. Only the United Kingdom remained free to oppose them. Knowing Britain needed supplies from overseas, the German navy built a large fleet of U-boats to hunt merchant ships. It was up to Canada to protect all shipping from North America to Britain. Corvettes like HMCS Sackville were crewed by young men from across Canada, and from all walks of life. The Battle of the Atlantic (1939-1945), the longest of the Second World War, was Canada's battle, and the outcome sealed Hitler's fate. Following twelve-year-old Wally as he leaves the family farm on the prairies to pursue a daring career in the navy--leaving love interest Winnie behind--this striking graphic novel is a high-stakes adventure, a love story, and an important historical lesson."--publisher.