With the SAS: Across the Rhine is the story of the latter part of Captain Ian Wellsted's military career with the Special Air Service. This is a very personal account, revealing the many emotional as well as physical strains placed upon men in the fighting line.

The author takes us back to his time employed with the 79th armored Division (the famous "Hobart's Funnies") preparing for D-Day and his desire for more exciting action, which led first to the Parachute Regiment and then the SAS. Whilst we learn a little of his time with the maquis, the main focus of the story is his part in Operation Archway. A British special forces mission which involved the 1st and 2nd Special Air Service Regiments acting in support of the advance of Field Marshal Sir Bernard Montgomery's Allied 21st Army Group in operations Varsity and Plunder, this crossing of the Rhine was one of the largest and most diverse operations ever carried out by the SAS.In this offensive, the SAS teams were thrust deep into German territory, often having to battle their way through the enemy lines to get back to safety.

In one of these encounters, as the war was drawing to a close, Wellsted's troop found itself surrounded. In the ensuing firefight, Wellsted was wounded, bringing his active front line career to an end.