A grandson embarks on a decade-long journey to uncover the truth about his grandfather, the brilliant mathematician Richard Bellman, whose pioneering work in dynamic programming and artificial intelligence was overshadowed by the dark cloud of McCarthy-era suspicion. Through personal interviews and declassified FBI documents, the film explores the complex legacy of a man who was both a visionary scientist and a target of political paranoia, revealing the human cost of living under the weight of history and the enduring power of family secrets.