Four African-American Vietnam veterans return to Vietnam. They are in search of the remains of their fallen squad leader and the promise of buried treasure. These heroes battle forces of humanity and nature while confronted by the lasting ravages of the immorality of the Vietnam War.

Ex-kickboxing champion turned sports photographer Max Havoc again finds himself in Guam on a publicity photo shoot. Max’s helpful ways land him in the lives of the vacationing sisters Jane and Christy Goody who have acquired a rare jade dragon, which belongs to the ruthless Japanese Yakuza who will stop at nothing to get it back. It’s up to Max to stop the Yakuza, save the sisters and restore order to the peaceful island.

Lek, a Thai boxing instructor teaches Thai boxing to a group of kids for their self-defence. He is like both teacher and father to the kids – Wuth, Catt, Pong and Jib. The four have to look after Wuth’s little brother, Woon who has a heart problem. Soon, they came across a twist of fate that leads them to fight a gang of hooligans. This causes a sudden heart attack to Woon, resulting him to have a heart transplant immediately. Unfortunately, the hospital they were in has been seized by an international terrorist group led by Paeda. Unavoidably, they get involved and fight against the terrorists, as they need to save Woon’s life and help their country at the same time.

In Bangkok, the young Kham was raised by his father in the jungle with elephants as members of their family. When his old elephant and the baby Kern are stolen by criminals, Kham finds that the animals were sent to Sidney. He travels to Australia, where he locates the baby elephant in a restaurant owned by the evil Madame Rose, the leader of an international Thai mafia. With the support of the efficient Thai sergeant Mark, who was involved in a conspiracy, Kham fights to rescue the animal from the mobsters.

Gang leader Tony pulls off a major diamond heist with his crew, but cop-turned-criminal Ling knows who has the loot and responds by kidnapping Tony’s daughter and holding her for ransom. Unfortunately, Tony’s lost the diamonds as well. As he frantically searches for his daughter and the jewels, Tony pairs with a high-kicking government agent who once worked with Ling and seeks revenge on him.