Lost City of the Jungle is currently streaming on Tubi

Lost City of the Jungle (1946)Action, AdventureRating 47/100

After a new element that defends against atomic bombs is discovered, an agent must stop a warmongering mastermind from getting his hands on it.

Cast: Russell Hayden, Jane Adams, Keye Luke, Lionel Atwill, John Eldredge, John Mylong, Helen Bennett

Director: Lewis D. Collins, Ray Taylor