On an island off the west coast of Great Britain, a group of survivors of World War Three struggle to continue living. Hugh Packenham foresaw the oncoming conflict and fled to the island. His only neighbours are fisherman Shaun O'Donnell and his wife Barbara. Then other survivors seek refuge, including an African American sailor, and conflicts develop
| Actor | Role |
|---|---|
 Earl CameronHank Christians | Hank Christians |
 John ArnattHugh Pakenham | Hugh Pakenham |
 Peter CopleyTom Jarrow | Tom Jarrow |
| TTom CriddlePvt. Wells | Pvt. Wells |
 Michael GoodliffeCol. Ridgewell | Col. Ridgewell |
 Leslie DwyerSgt. Marks | Sgt. Marks |
 Cyril LuckhamDr. Wincot | Dr. Wincot |
| JJack RodneySmithers | Smithers |
 Brian O'HigginsShaun O'Donnell | Shaun O'Donnell |
| NNatalie KentMrs. O'Donnell | Mrs. O'Donnell |
| AAnna TurnerMiddle Aged Woman | Middle Aged Woman |
 Margaret TyzackValerie Hollis | Valerie Hollis |