Scooby Doo, Where Are You! (1969)

Join Scooby-Doo, the cowardly Great Dane, and his groovy crew of mystery-solving teens – Fred, Daphne, Velma, and Shaggy – as they cruise in the Mystery Machine, encountering spooky shenanigans and outlandish villains disguised as monsters. With Scooby's nose and the gang's sleuthing skills, they unmask the culprits behind every ghostly caper, proving that even the most terrifying creatures are just criminals in costumes.