Get Smart (1965)

S3E20 The Wax Max

Max and 99 take a well-deserved break at a fun-filled amusement park. Unbeknownst to them, the park serves as a covert location for KAOS to exchange secret communications. As they revel in the rides and attractions, they unwittingly stumble upon a sinister scheme that intertwines their leisurely day with espionage and danger.