Some years later, now married with two sons, Gaines is spotted serving in an upmarket Washington DC hotel by a senior White House official.
And so he goes on to serve and listen to events as they unfold in the White House while attending to the latest president.
But tearing Gaines in two is his eldest son Louis (David Oyelowo) - a strong, intelligent young man with a thirst for equality and justice.
As a university student, he becomes involved in the fight for Civil Rights. His peaceful protesting leads him to numerous stints in prison.
Gaines also sees things from the other side as he watches presidents from Eisenhower onwards ignore or react to the Civil Rights Movement.
This is fascinating story about the slow emergence of black equality and basic human rights for all.
Watch the trailer here: