[s1e20] The - Siren's Song

: Velma discovers that Destroido covered up an incident from 20 years ago, which explains why no records existed in the local papers. Production Details Air Date : This episode originally aired in mid-2011.

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

: 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. : Velma discovers that Destroido covered up an