S3 E1: The Mysterious Affair at Styles

S3 E2: How Does Your Garden Grow?

S3 E3: The Million Dollar Bond Robbery

S3 E4: The Plymouth Express

S3 E5: Wasps' Nest

S3 E6: The Tragedy at Marsdon Manor

S3 E7: The Double Clue

S3 E8: The Mystery of the Spanish Chest

S3 E9: The Theft of the Royal Ruby

S3 E10: The Affair at the Victory Ball

S3 E11: The Mystery of Hunter's Lodge