The Adventures of Ozzie and Harriet - "The Safe Crackers" (1953 Season 1)

While in Herb Dunkle's empty office, Ozzie teaches Ricky how to crack a safe.

Director: Ozzie Nelson
Writers: Don Nelson (television play), Bill Davenport (television play)
Stars: Ozzie Nelson, Harriet Nelson, David Nelson, Ricky Nelson

https://www.imdb.com/title/tt0758961/?ref_=tt_ep_nx