Dennis the Menace (1959)

S3E22 The Private Eye

After Mr. Wilson's wallet is stolen by a pickpocket, Dennis and Tommy take it upon themselves to track down the thief for the police. Determined to help, the duo embarks on an adventure filled with clues and mischief as they search for the elusive criminal, hoping to restore Mr. Wilson's belongings and bring the culprit to justice. Their amateur sleuthing leads them through various encounters as they piece together the mystery of the wallet theft.