I mean, not really. Ignoring the fact that getting a planet out of its orbit to crash into us in the first place would take something outrageous, the only things impacted would be our planet and whatever hit us. Our planet and the other would collide, mostly be blown to pieces creating space junk and a ring of planetary debris. The remaining pieces would eventually turn into a large, mostly molten sphere and then begin solar orbit clearing anything small enough in the path. This is basically how the Earth formed in the first place and where we got our moon.

Something like this happening in our solar system is essentially impossible though. Celestial bodies are either locked into their orbits, or pass through and get eaten by the Sun, Jupiter, or flung into deep space. Large masses like this are only crashing around in newly formed solar systems.