[s1e20] The Siren's Song -

"The Siren's Song" - Scooby-Doo! Mystery Incorporated (S1E20)

: This episode marks a major turning point in the series’ central mystery. Velma confronts Angel Dynamite , accusing her of being Cassidy Williams , a member of the original Mystery Incorporated who vanished years ago. [S1E20] The Siren's Song

The gang eventually uncovers a plot by and his group of radical environmentalists. Dressed as "Fish Freaks," they plan to trigger a massive oil spill to destroy the environment as a way to "save it" by proving its vulnerability. Key Revelations "The Siren's Song" - Scooby-Doo

: It is often praised for its "creepy mystery" and the emotional depth given to Velma's character. The gang eventually uncovers a plot by and

The episode begins with the disappearance of a sardine boat near a haunted oil platform. Feeling like a "fifth wheel" because of Fred and Daphne’s budding romance and Shaggy’s close bond with Scooby, Velma follows an anonymous tip from her blog. This leads her to encounter , a mysterious "mer-woman" who appeals to Velma’s desire for a secret friend.

: Features the primary voice cast, including Mindy Cohn as Velma and Frank Welker as Fred/Scooby.