The history of Portugal since the Republican revolution of 1910 to the revolutionary period following the military coup of April 24, 1974, recounted with a marxist perspective, using historic sound and film documents. The title refers to a trilogy of values proclaimed by Salazar, prime minister of Portugal in 1936.
| Actor | Role |
|---|---|
 Álvaro CunhalSelf - Politician | Self - Politician |
 António de SpínolaSelf - Army General | Self - Army General |
 Mário SoaresSelf - Politician | Self - Politician |
 Richard NixonSelf - Politician | Self - Politician |
 José Mário BrancoNarrator (voice) | Narrator (voice) |
| RRui Paulo da CruzNarrator (voice) | Narrator (voice) |