It is the Fourth of July and Olivia is celebrating it with her cousins, Graham and Amelia. It's a warm, sunny day, and they decide to take a hike in the nearby woods to admire the natural beauty of their surroundings in anticipation of family fun and games and picnic dinner. Suddenly, as they're talking about the origin of "Independence Day," they come upon a strange-looking machine featuring the years 1776, 1863, and 1963. Can this be a time-machine? Will they consider a little Fourth-of-July time-travel trip? What do you think?