The Grim Adventures of Billy and Mandy Season 4 Episode 20

The Grim Adventures of Billy and Mandy Season 4 Episode 20 SerialGo Watch Online Streaming — After Grim's scythe fails to open a portal, he decides to sharpen it, but the blade breaks. Billy, Mandy, and Grim go to the Underworld to meet F (a parody of "Q" from James Bond), who handles the secret gadgets of the Underworld. F reveals Scythe 2.0, which is a new and improved, sentient, autonomous scythe that thinks and feels, which Grim uses while his classic scythe is being repaired. When Mandy tells Grim to do his usual humiliating chores, Grim delegates the work to Scythe 2.0, which rebels and decides to reap on its own, starting with Billy and Mandy. Grim saves the kids, takes Scythe 2.0 back to the Underworld, and returns with his old scythe.