Call the ghostbusters, oh wait, we're dealing with aliens here? Call Sigourney Weaver!!!

First build a huge spacship stock it with plenty of weed then fly to an uncharted planet, pick up some sort of distress call land on the planet and then fight the little purple bastards. Find their homeworld and have a little boy named ender blow it up with little 3 dimensional squares. Then celebrate by finding a hidden stockpile of weed on Kashyyyk and then smoke out with Chewbacca and his Wookiee harem.

Then wake up a few days later and realize that you took 16 mics of acid.