American animal trapper Frank Buck travels with Ali, his "number one boy," on an expedition into the Malayan jungle. From their jungle headquarters just north of Singapore, Frank, Ali and a team of native helpers roam the area from Northern Johore to Perak in search of interesting wild animals, reptiles and birds. Hoping to find a tiger, Buck captures a monitor lizard and a black leopard, while another black leopard narrowly escapes an encounter with a giant python and then battles a bigger and ...