Scooby-Doo! Mystery Incorporated (2010)

S1E9 Battle of the Humungonauts

As two colossal creatures begin wreaking havoc in Crystal Cove, Mayor Jones enlists Fred and the gang's assistance to help the sheriff subdue them. At the same time, Shaggy finds himself torn between his budding romance with Velma and his loyalty to his best friend, Scooby.