Explores life at RAF Lossiemouth during heightened global tensions. RAF pilot Jake heads to NATO's frontline to confront Russian jets, while rookie pilot Harry attempts to earn his wings and qualify for combat operations.

Explores pilot Ben's first deployment as he confronts a life-or-death decision over Syria, while Lossiemouth's station warrant officer prepares for a major military event.

RAF Lossiemouth's new surveillance team, Poseidon, are called into action when a Russian warship is detected close to the UK's vital pipelines; regiment gunner Ben Hoe overcomes a lifelong medical condition as he deploys to the front line.

Station Commander Jim wants his wings back; after 33 years of service, Warrant Officer Dave prepares to retire at the Battle of Britain dinner; all plans are halted when the death of Her Majesty the Queen is announced.

Junior pilot Moz must overcome his nerves to help tackle the Russian threat on NATO's aerial front line; Poseidon trainee Ross faces the biggest test of his RAF career.