Synopsis by Hal Erickson
Nehemiah Persoff makes his second Mission: Impossible guest appearance, this time in the role of corrupt Latin American official Phillipe Pereda. Planning to loot his country's treasury of $40,000,000, Pereda intends to pin the blame on the country's honest president, De Varo (Rodolfo Acosta). The IMF is assigned to destroy Pereda by stealing back the money--from a high-tech safe which is controlled by sound waves and requires perfect pitch to open. Originally broadcast April 6 1969, "The Vault" was scripted by Judy Burns from a story by Burns and John Kingsbridge.