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In Shuttlecock Director's Cut, the secret that John confesses to his son involves his father Major James Prentis being involved in a betrayal during WWII. It is revealed that Major Prentis had made a difficult decision that went against his principles and had a significant impact on the lives of others.
As John struggles with the weight of this secret and the legacy of his father's actions, he also grapples with his own relationship with his son. The film explores themes of guilt, redemption, and the complexities of father-son relationships.
Throughout the movie, flashbacks to WWII and present-day scenes at the memorial service provide insight into the characters' motivations and emotions. As John and his son confront the truth about their family's past, they must come to terms with the consequences of the choices that were made and find a way to move forward together.
