While the Battle of the Atlantic that took place during WWII is well known, the struggle to get troops, man and supplies to Europe from the USA during World War I was also momentous. German U-boats took a frightening toll on American ships, and their brazen raids are in fact one of the key reasons America declared war on Germany and its allies. This film is a short portrait of the struggle, showing how lookouts, convoys, and new weapons such as the depth-charge-firing "Y gun" were used to sink U-boats. Many ships are seen in the film, including battleships and troop transports. The Clemson-class destroyer USS Dale (DD-290) and Wickes-class USS Schenck (DD-159) appear in the film, which also contains footage of King George greeting the fleet in the U.K. This film is an excerpt from a much longer portrait of America in WWI, entitled "America Goes Over", that was released by Kodak in 1918.