The odds of Planet X hitting us are remote. Unfortunately, an impact is not necessary to cause major problems. Because of the gravity and magnetism of Planet X it will be able to disrupt things on earth from a distance, just as it is allegedly already doing to the solar system. Here's what McCanney says:
The effects on the Earth are very clear, both from my theoretical work and from what the ancients describe. There are episodes of mountain building. There could be a pole shift caused by a gravitational tidal wave that moves through the surface mantle of the Earth. There would be flooding both from tidal waves of the oceans, tremendous atmospheric storms and also from a huge pollution influx of oil and water -- hydrocarbons and water -- from inner planetary space onto Earth. And all of these things have been seen in the past.The Bible talks about, for example, when all the vermin, bugs, insects and snakes came out of the ground and overran the Earth. This was a direct result of the electric fields penetrating the mantle of the Earth and causing these creatures to leave the ground and come out of the ground. The atmospheric conditions include the increase in the number of volcanoes going off.I want to mention that these planetary objects do not have to come necessarily that close to Earth to cause even dramatic Earth changes. Electrical discharges can occur between the planets even a distance apart. These, in fact, have been measured with NASA satellites where, in the 1990s, we saw incredible electrical discharges flow between Jupiter and Earth, taking out a number of our communication satellites. The scientists at that time were totally puzzled that outer space could do this. They still don't understand the very electrical nature of our solar system.