One of Our Spies Is Missing (1966)

A biochemist develops a process that reverses ageing but, when he disappears, it's up to Napoleon Solo and Ilya Kuryakin to recover or destroy the process before it falls into the hands of the THRUSH.

• Release Date: 1966-12-01
• Runtime: 1h 40min
• Production Company: Arena Productions
• Production Country: United States of America
• Director: E. Darrell Hallenbeck