The first episode of "This Is America, Charlie Brown" starts out with Charlie Brown talking about the Pilgrims leaving England for America aboard the Mayflower. The first weeks aboard the Mayflower were all right. The the trip gets rough, and they might have to return to England. Then on November 11 1620 Snoopy and Woodstock spot land. The Mayflower Compact is then written. They find land that has been mysteriously cleared.