Colonel Jong was the liaison officer between his government and a former member of the Weapon Plus program named Butler. The North Koreans hired him to take prisoners from Jong's camp and transform them into super weapons against Korea's enemies. With captives in his custody, Jong and Butler used splices of mutant DNA from members of the X-Men and the mercenary Deadpool.
These samples mutated the prisoners which gave them similar physical and ability characteristics to that of the X-Men. But after breaking free with the help of Deadpool, Wolverine and Captain America, they came together to defeat Butler and Jong died during the battle, stabbed by Deadpool.