Meet Simon Slade, super ace private eye of the Super Case Detective Agency. His friends call him Ace, and his clients call him the greatest. When Ace's good friend, top school newspaper reporter Flash Prescott, became his new client, a great ghost hunt began. With Flash's best news story trophy on the line, the mystery of a haunted tree house was too scary for Flash to tackle by himself but too big a case for Ace to pass up. Ace, along with his faithful dog One-Eyed Jack, and partner Jazz Sinclair help Flash dive in to a spooky Halloween night of adventure they would never forget.