1x9 - The Scooby-Doo/Dynomutt Hour

Mamba Wamba and the Voodoo Hoodoo (Scooby-Doo): A rock bank steals a magic voodoo chant they heard and sing it on stage, then the witch doctor comes and makes the lead singer disappears. The Queen Hornet (Dynomutt): The Queen Hornet steals a armoured car filled with money, leaving the heroes on a search for evidence of her crime.