Raiden appeared before Sub-Zero and asked for his aid in defeating the Deadly Alliance in Outworld. Fighting alongside Raiden would prove to the world that the Lin Kuei had changed for the better, Sub-Zero accepted the challenge and brought with him all of his newest recruits. It was highly usual for the Grand Master to embark on such a dangerous mission, but Sub-Zero felt it was necessary to earn the respect of his fellow Lin Kuei.
Ending
After defeating the Deadly Alliance, Sub-Zero returned to the new temple
of the Lin Kuei with the severely injured ninja Frost.
A short time later, I visited the temple to commend him for his victory
in Outworld and to express my gratitude for all his assistance. With
Sub-Zero now the Grand Master of the Lin Kuei, Earthrealm will be well
protected.