At Rebellion, Steve Maclin defeated KUSHIDA to become IMPACT World Champion for the very first time. But during his Changing of the Guard Ceremony, Maclin revealed that his mission would not be complete until he defeated a Canadian in their home country of Canada, just like he planned to do to Josh Alexander. Maclin laid out an open challenge to any Canadian, and it was answered by perhaps the most frightening Canadian on the entire IMPACT roster, PCO. With IMPACT President Scott D’Amore backing him up, Perfect Creation One demolished Maclin’s personal security force, sending a threatening message to the new IMPACT World Champion. Now Maclin and PCO are set to collide at Under Siege in a monstrous main event. What will happen when these two explosive forces go head-to-head with the IMPACT World Title on the line? We now know that following Maclin’s violent assault on Rhino that sent the “War Machine” to the hospital, the IMPACT World Title match between Steve Maclin and PCO will be contested under No Disqualification rules.