Treasure Seekers: Tropic Demon

It's the year 1968.  Mark McArthur, leader of Treasure Seekers, Inc., and his team must travel to an unexplored jungle in central Africa to track down the arch criminal who murdered their researcher. Their journey takes them through deadly danger as they search for the lost temple of an ancient culture. The same goal that had gotten their researcher killed by a mastermind who also seeks the treasure.
Mark, Dexter, Karen and Lemmy must confront authorities in Katanga Province as well as a rival treasure hunter, the beautiful Alexandra Dupont. Harrowing moments, narrow escapes and romance abound as they seek their goal, with the added threat of a mysterious flying "demon" that terrorizes the jungle's inhabitants. The team must rely on their wits, courage and camaraderie to survive.