Amazon Jail 2 (1987)

While on their way to be sold to a well-connected Japanese slave trafficker in South America, four abducted tribeswomen make a narrow escape from captivity and certain doom. Now, trapped in the dense Amazon jungle, the women must confront the green inferno's native dangers and the ruthless slaver's jackals who won't let their prized catch slip away from them so easily. But the escaped female prisoners, too, won't go down without a fight. After all, the girls' leader knows the jungle like the back of her hand.