Get Smart (1965)

Season 1: Episode 17

After several buildings are inexplicably blown up, Control follows the trail to an art gallery where a former chemist, debonair Rex Savage, has teamed up with painter Mondo to produce a series of explosive paintings. 99 disguises as an art expert with Max as her driver/butler as they try to get Savage's fingerprints and photograph, something that turns out to be a little more complicated than expected.