Fifteen years have passed since the founding of Mystery Incorporation. Now the four friends continue to hunt dangerous magical creatures in the city of Crystal Cove. Fred, a cheerful playboy and handsome man, married Daphne, a brave beauty. They have a 15 year old son, Jack. Smart and brave nerd Velma married the cowardly and indecisive Shaggy and they have a 15-year-old daughter Caitlin. Jack is in love with Caitlin and he tries to court. Two families of four friends have a great relationship. 