The film stars Iwan Rheon, with Milo Gibson, Stefanie Martini, Marcin Dorociński, Kryštof Hádek and Christopher Jaciow in supporting roles.

Canadian RAF pilot John Kent, who became affectionately known as "Kentowski", has his work cut out for him when he is handed the angry and often maligned squadron to command.

[4] Piloting Hawker Hurricane fighter aircraft, 303 Squadron works through language barriers, cultural differences and their grief on the loss of loved ones to become highly effective in the Battle of Britain.

[6] In late 2017 and early 2018 some scenes were shot on the Kent coast at Stone Bay and Victoria Gardens in Broadstairs.

Leslie Felperin made this concluding comment: "The lack of budget, relative to Dunkirk at least, is glaring in the aerial dogfights, and the score is too maudlin and on the nose, but director David Blair navigates the whole thing through the storm with watchable competence".