Based on actual accounts, this film portrays the days and hours before and during the invasion of the Falkland Islands by Argentina, which eventually lead to the Falklands War. As the Argentine forces land on the main island and make their way towards Government House, the handful of British defenders batten down the hatches and prepare to defend Governor Rex Hunt, his family, and their fellow islanders from the invaders.
| Actor | Role |
|---|---|
 Ian RichardsonHis Excellency, Governor Rex Hunt | His Excellency, Governor Rex Hunt |
 Rosemary LeachMavis Hunt | Mavis Hunt |
 Hugh RossMajor Gary Noott | Major Gary Noott |
 Bob PeckMajor Mike Norman | Major Mike Norman |
 Ian McNeiceDick Baker | Dick Baker |
 James WarriorDon Bonner | Don Bonner |
 Marc WarrenTony Hunt | Tony Hunt |
 Aidan GillenMarine Wilcox | Marine Wilcox |
 Garry CooperColour Sgt Muir | Colour Sgt Muir |
 Alex NortonChief of Police Ronnie Lamb | Chief of Police Ronnie Lamb |
 Trevor CooperDes King | Des King |
 Anne ReidMrs Mozeley | Mrs Mozeley |
 Adam GodleyPC Anton Livermore | PC Anton Livermore |
| RRichard LongMarine Dorey | Marine Dorey |
| AAlan TurnerMajor Patricio Dowling | Major Patricio Dowling |