It's the Girl in the Red Truck, Charlie Brown

Spike signals to a young woman driving a red pickup along the desert roads near Needles, California—daily, it’s the pinnacle of his day. In this hybrid animated and live-action special, we meet Jenny, an aerobics instructor who longs to become a big-city jazz dancer. She and Spike cruise, taking in the desert scenery and pausing at a roller rink. However, when Spike is accidentally ejected from the skating rink, he bolts into the night, pursued by people on a nighttime coyote hunt.