Picking up some time after the events in the first movie, Sean Lau is now the Commissioner of Police after the successful rescue operation. However, things turn bad when his wife and daughter are kidnapped. Sean has to seek help from former rival and retired DCP, Waise Lee, to return to his job to help save Sean's wife and child.
Chinese archeology professor Jack teams up with beautiful Indian professor Ashmita and assistant Kyra to locate lost Magadha treasure. In a Tibetan ice cave, they find the remains of the royal army that had vanished together with the treasure, only to be ambushed by Randall, the descendent of a rebel army leader. When they free themselves, their next stop is Dubai where a diamond from the ice cave is to be auctioned. After a series of double-crosses and revelations about their past, Jack and his team travel to a mountain temple in India, using the diamond as a key to unlock the real treasure.