Rogue Planet

In the not-too-distant future, a planet ripped from another star system is approaching our sun. The closest it will come is far beyond Pluto, not close enough to be a danger, to disrupt Earth or the other planets, but it will be close enough for the chance of sending spacecraft to investigate it. But before plans can be made for an unmanned probe, astonished scientists detect radio transmissions from the rogue planet; nothing more than counting numbers in binary, but not a natural occurrence. Immediately plans are formed to send a manned ship. Will this be man’s first contact with intelligent alien life?