Storyline Roger Henderson, the young son of a wealthy British gentleman, lives in one of those grand British country estates surrounded by huge gardens. When a Rembrandt painting is stolen from the vault in the basement of the mansion, Roger and John Wilson (young son of the butler) discover a secret tunnel leading from the vault to another building on the estate. They then set out on a dangerous mission to bring the smugglers to justice.

A self-made owner of a soft-drink factory decides to give the entire plant to his naive nephew as a present. Now, as two women vie for his attention, he is entangled in the theft of an ancient statuette. Who is friend, and who is foe?