Ben 10 (2005)

S3E12 Be Afraid of the Dark

Title: Shadows of Fear Plot: The resurgence of Ghostfreak brings turmoil for our team. While Grandpa Max and Gwen confront the alien mummy in outer space, Ben faces Ghostfreak and Dr. Vicktor back on Earth. Ghostfreak unveils his sinister agenda: to cloak the planet in Coronium, blocking out sunlight and allowing him to dominate. Armed with a new alien transformation from the Omnitrix, can Ben thwart Ghostfreak's scheme and rescue Grandpa and Gwen from peril?