Season 1

A Scottish battalion heads to Nato’s war game while another packs for Cyprus. Meanwhile, ceremonial drills begin back at home in preparation for the King's summer stay at Balmoral.

Scots defend trenches in Estonia while others scout enemy lines and protect HQ. In Catterick, chaos reigns in riot training, while ceremonial troops in Edinburgh fight for redemption.

Under fire in Estonia, HQ falls and Shep takes command. Back home, there are goodbyes, scars, and one final performance to mark the end of duty and the start of something new.