Dumb-Dumbs and Dragons: At the beginning, Hoss Delgado is beating the crud out of Grim for not returning his lawn mower. Billy admires Hoss as a hero, but he wants to become one himself. Grim transports Billy back in time so he can prove that he can be a hero. To become a real hero, Billy must slay the last living dragon named Killdozer, so Sir Boss Del Guapo trains Billy by making him perform chores. After completing his training, Billy must learn Killdozer's weaknesses and discovers that he likes to drink Health Shakes and likes to workout to keep his mind sharp and fit. In the process, they become friends, but Billy still has to slay Killdozer. In the end, though, he can't do it because Killdozer is still a friend. Also, Grim transports Sir Boss Del Guapo to the present. Now Boss is selling egg rolls and he meets Hoss Delgado. Then, he remarks to how ugly Hoss is.
Fear and Loathing in Endsville:
Grim visits his childhood idol, Dracula, who lives in the Home of the Ancients. Grim wants to spend some time with his idol, so he takes Dracula to a diner for the Early Bird Special. However, the senile old Dracula insists that he drives the car. Dracula crashes the car somewhere in a desert, miles away from Endsville.
During their little adventure in the desert, Grim and Dracula hitch-hike the Black Maw Truck, which again crashes on the same place as their car. They eat scorpions for dinner later, causing their giant mother to attack them. Grim, while defending Dracula, gets several poisoned scorpion stings. He asks Dracula to suck the poison, but Dracula says that "vampires don't suck blood, that's a myth. They scrape... and lick". While Dracula is demonstrating the "scrape and lick" technique, Grim is having hallucinations caused by the poison during the whole night. In the morning, Orc the Sand Bandit finds Grim stranded in the desert, and takes him to his house.
In Orc's house, Grim notices scrape marks on his arm, meaning that Dracula did actually suck the poison out of him. With that revelation, Grim tells Orc that he has to go find Dracula. The Tusken Raider offers him his car, a giant Sandcrawler. With the Sandcrawler, Grim quickly finds Dracula, and they finally head to Endsville. They go to a diner, and Dracula sneaks away, leaving Grim to pay the bill.
The episode ends with Billy asking Grim how it was. He replies, "I don't wanna talk about it."