In the war drama Greyhound, the commander of an Allied ship leads a convoy of military boats across the Atlantic during World War II. German submarines are in hot pursuit, however, and the mission won't be easy to accomplish. Not long after the United State become involved in World War II, a convoy of American war ships sets sail for Europe. The convoy is under the command of Commander Ernest Krauss. Krauss has spent many years in the Navy, but this is his first command assignment. He captains the destroyer USS Keeling, whose call sign is "Greyhound." As the convoy makes its way across the Atlantic Ocean, a pack of German submarines is in pursuit. The German u-boats dog the American convoy and engage it in a life-and-death battle. During the course of the battle, Krauss battles with his own internal self doubts. The film is based on the 1955 novel The Good Shepherd by C. S. Forester. Actor Tom Hanks wrote the screenplay for the film and stars in the lead role. The film was originally scheduled to be released theatrically in the spring of 2020. But due to the coronavirus pandemic that shut down theaters, its theatrical release was delayed and eventually cancelled. The film was finally released in July 2020 for on-demand viewing on the Apple TV+ streaming platform. It was one of the first original feature films released on the relatively new platform. Greyhound received mixed-to-negative reviews from critics upon its release.