For six months, a retired Wall Street banker (Richard) and his filmmaker son (Chris) travel the world collecting candid and touching stories from fathers and sons. Their journey pieces together a rich tapestry of tales as varied as the men they interview, and one, from Julian Lennon, includes a shocking revelation about his famous pop music father. But these fathers and sons serve as a heartwarming backdrop to the personal drama that unfolds between Richard and Chris, whose own relationship is put to the test.