While on the way to the Mystery Club Convention one night, the Mystery Machine's headlights turn off after bumping into a rock. Just then, a plane comes in for a landing and narrowly misses the van by a few feet. Fred, Daphne, Velma, Shaggy, and Scooby-Doo investigate, but they become suspicious when the plane makes a mysterious delivery. They track a truck that comes out of the plane to a farmhouse. The truck has left a crate at the farmhouse. They soon find out that they are not the only ones investigating. The Caped Crusaders, Batman and Robin, are investigating, too. Batman and Robin had been patrolling Gotham City when they saw the airplane. The plane had no lights, and Batman suspected that someone was smuggling something illegal into the United States of America, so they investigate