What was once considered a childhood hobby has evolved into a billion-dollar global marketplace. Signed, Sealed & Delivered takes audiences inside the high-stakes world of sports collectibles, where rare trading cards, signed jerseys, and historic memorabilia have become status symbols, emotional investments, and financial assets. Through exclusive access, interviews, and behind-the-scenes footage, the documentary explores the personalities and businesses driving the hobby's modern explosion. Featuring appearances and commentary tied to sports and business icons including Lionel Messi, Kevin O'Leary, and Gary Vaynerchuk, the film uncovers the culture, psychology, risks, and financial opportunities behind the booming collectibles industry — while asking what people are truly chasing when they spend fortunes trying to own a piece of sports history.