Early morning road trip up the east shore of Lake Superior after I dropped my son off at school. Got to the spot I wanted to get some video of and started setting up. Its a conservation area and there was two cars of hikers getting ready for their venture. I could hear a small plane off in the distance. It was zig zagging around me but really could not see the darn thing. Got my cell phone out and started up Flight Aware app and sure enough he was right above me at 5000 feet. Waited on the picnic table for about ten minutes and it sounded like he was leaving the area. Got the pumpkin it the air and off I went down the lake at about 300 feet. All of a sudden there he was again but at about 400 feet and heading towards the pumpkin. Talk about what should my next move be. I dropped down to about 180 feet and hit RTH. That plane did a circle and at low Alt. and left and never came back. I was so shaken I just packed up and went home. It could have been a great morning getting some good video. Processing what I did get and will post later tonight.