YMMV / Martin Mystery S 2 E 39 They Came From The Gateway Part One

• Complete Monster: In a series filled with supernatural beings and monsters that have some semblance of redeeming traits, the ghostly Gatekeeper is wholly bereft of them. Keeper of the gateway to the underworld and longing to take over the human world, the Gatekeeper violently turns the head of the Center, M.O.M., into his slave and proxy while sending out monsters to kill her young agent. Hungering to “feast on the bones” of anyone who opposes him, the Gatekeeper's ultimate goal is to swarm the entire world with monsters from the underworld and rein in the bloody slaughter of mankind, even managing to unleash his monsters on several populated cities throughout the planet to wreak wanton havoc before he's ultimately stopped.