Ben vouches for Ned to prove that the pit pony Sable is Willie's horse. Willie becomes determined to find out who stole his horse, and soon discovers that the "treasure" that Spider is still digging on the beach for is in fact stolen loot. Ned thinks there is a connection between the mysterious stolen money and that several pounds of explosive powder is stolen from the mine, and he begins to suspect that Ben is behind the theft to cover for his gambling debts. Meanwhile, Mollie and Angus continue to give Willie the cold shoulder, and Ben Frawley's true colors are revealed.