At a time of heightened global tensions, go behind the scenes at RAF Lossiemouth. RAF pilot Jake is sent to NATO's frontline to face off against three Russian jets. And rookie pilot Harry tries to earn his wings and qualify for live operations.

Deploying for the first time, pilot Ben faces a life-or-death decision over Syria, while Lossiemouth's station warrant officer prepares for one of the biggest events on the military calendar.

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

High over Syria, young pilot Buzz encounters a Russian aircraft just as his wingman suffers a cockpit emergency. In Estonia, another broken jet risks leaving NATO's frontline undefended against Russia.

Station Commander Jim wants his wings back. After 33 years of service, Warrant Officer Dave prepares to retire at the Battle of Britain dinner. But 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. And Poseidon trainee Ross faces the biggest test of his RAF career.