The first episode follows the seven regiments of the Division as they prepare for the biggest national event in generations - the Coronation of King Charles - and follows them in the brutal process of training Ukrainian would-be officers to fight on the front line.

The seven regiments of the division are just under a week away from the biggest national event in generations - the Coronation of King Charles, and Garrison Sergeant Major Vern Stokes has one last chance to rehearse and avoid any potential catastrophes on the big day. With conflict raging in Europe and across the world, the King's Guard need to be operationally ready to mobilise at any time, and Irish Guards officer Jaq North is working to provide a strategic lifeline to Ukraine in their conflict with Russia, by training their recruits here on UK soil.