All six episodes of the historical war drama based on the book by Ben Macintyre chronicling the formation of the Special Air Service during WWII. In 1941, army officers David Stirling (Connor Swindells) and Jock Lewes (Alfie Allen) are inspired to create a special unit capable of operating deep behind enemy lines. A series of daring missions follow, bringing both success and devastating loss. The ensemble cast also includes Dominic West, Jack O'Connell, Jacob Ifan, Corin Silva and Sofia Boutella.