Ello Gov'nor

Synopsis
Mordecai and Rigby watch an old British horror movie, Ello Gov'nor, featuring an evil ghost taxi. Despite being a low-budgeted work of fiction, Rigby gains a paranoid fear of the evil taxi, believing he sees it everywhere he goes. Meanwhile, Mordecai tries to make Rigby overcome his fears. After a number of attempts, Mordecai and Rigby take a ride in Pops' taxi. However, the evil taxi appears out of nowhere and chases Mordecai, Rigby, and Pops. Rigby must overcome his fears to save himself and his friends.

Plot
Rigby rents a movie at Movie Shack Hut. On the way out, he crashes into the one of the staff members located in the store's exterior. Rigby insults his outfit, and as Rigby walks away, the employee shouts "It's a costume! They make me wear it!"

Cut to night time, it is movie night for Mordecai and Rigby. Mordecai gets the popcorn and Rigby got the movie he rented at the store. Mordecai thought that they were going to watch Shy Guy, a romantic chick flick, but Rigby tells him that he has seen the movie a bunch of times, and he that he bought something of higher quality. He shows Mordecai the movie he rented, Ello Gov'nor. Rigby claims that it's a horror movie starring a taxi possessed by the driver's soul seeking revenge on the gang members responsible for murdering him, which Mordecai refuses to watch and reminds Rigby that the last time they watched a horror movie, he had to walk him to the bathroom for a week. Rigby is still not held back, saying that it's black-and-white, and old and cheesy. Mordecai finally gives in and turns on the movie, to which Rigby quickly grows fearful from the first encounter with the possessed taxi. When the movie ends, Mordecai is asleep, proclaiming the movie is likely cheesy, while Rigby is still in grave terror.

After a clock wipe-cut to a scene in their room, Mordecai is seen sleeping, unlike Rigby who is moving around and trying to sleep. Rigby gets up and goes to the window, and sees the British taxi briefly. He calls Mordecai, still asleep, unresponsive. When Rigby turns around again, he sees the taxi directly at the window, staring at him with a demonic stare. Rigby goes to Mordecai telling him to wake up while shaking him but it isn't working. Then Mordecai's eyes light up and the British taxi comes out of Mordecai. Rigby wakes up screaming, awakening Mordecai, bothered by Rigby's shrieks, telling him to dream about being a tough guy.

Rigby goes back to sleep and dreams is a tough guy nicknamed Rigorson about to punch a man in an alley, when suddenly the possessed British taxi comes in and runs over Rigby. He wakes up shrieking yet again, with a poor dazed Mordecai retreating to watching Ello Gov'nor repeatedly until Rigby conquers his fear. He holds Rigby up to the TV for several days, telling him to "look at it [the British taxi]." By the end, they are both worn out, and Rigby finally escapes Mordecai's grasp, and throws the tape of the movie at the wall, destroying it. Later, Mordecai takes Rigby to Benson's cricket game to try to desensitize him to British people in general, but they all don't stop greeting him with "Ello, gov'nor!" until the British taxi appears yet again (in his mind), causing Rigby to flee back home in a panic. Mordecai explains Rigby's fear to Pops and Skips, to which Pops points out he owns a British taxi of his own.

Mordecai, Rigby and Pops appear at Pops' barn. Rigby asks Mordecai what's in the barn, and Mordecai claims to him that it is something that will help get rid of his fear. When Pops unlocks the barn, he shows them his taxi (which, in turn, is just a regular taxi). Frustrated, Mordecai tells Pops that he thought that he had a British taxi, but Pops said that he thought Mordecai said a 'brownish' taxi. Mordecai asks Rigby if he is ready, but Rigby is still too scared, saying that he has to go to the bathroom.

In the bathroom Rigby is washing his hands, but when he tries to dry his hands with toilet paper, he sees tire marks resembling the taxi from "Ello Gov'nor". He runs out of the bathroom in terror. Suddenly when the phone rings, he picks it up, with a man with a voice reminiscent from the British taxi, grumbling "Ello gov'nor!". Rigby throws the phone back, when the fax machine delivers a message, "ELLO GOV'NOR". Rigby runs out and throws himself in the back seat of the taxi. He commands Pops to drive away. Mordecai asks what's wrong, with Rigby clamming that the possessed taxi is following him. Mordecai said that he is just imagining things, much to the dismay of Rigby, saying that it was the British taxi and it was real. Then Mordecai sarcastically grunts that it came from the movie. Rigby starts to go insane in terror, with Mordecai saying that he is safe now and tries to try to calm him down while Pops drives them around for a while.

The next scene shows Pops driving. Mordecai is fast asleep, and Rigby asks Pops where they are going. Pops said that he always drives deep into the woods to empty his mind. Rigby sees the trees making scary faces at him and soon the British taxi appears. The car stops due to a lack of gasoline. Rigby starts to get terrified, and calls Mordecai to wake up. Mordecai starts screaming in terror, same with Rigby, stunned from his slumber. Mordecai, annoyed, asks what is it. Rigby tells him that they ran out of gas and the British taxi is coming for him, as expected. He ducks into the taxi's floor, scared for his life.

Mordecai and Pops get out of the taxi and start to push, when Rigby sees the British taxi coming straight towards them. He runs out of the taxi, screaming. Mordecai and Pops realize the taxi was real, and start running where Rigby is. The taxi that Pops was driving got destroyed by the British Taxi that almost got Pops, but Mordecai pulls him away at the last second, running to help Rigby. Rigby runs as fast as he possibly can, when the taxi surrounds him, forcing Rigby to lean on a tree. Pops and Mordecai appear to help, but the taxi open both of the doors and knock them both unconscious. Just when the taxi is about to murder him, Rigby starts beating it up and demanded that the british taxi leaves him alone forever. He wakes up, with Mordecai telling him that he hit his head and started going psycho, with Rigby telling him that he got over his fear by beating up the taxi which haunted him. In turn it was actually the employee guy wearing a British taxi costume, saying he wanted the movie returned. Rigby tells him that he broke it, so Pops pays for with lollipops, claiming to be worth $100. Mordecai and Rigby drag Pops away to escape being punished for paying with counterfeit money.

In bed, Rigby thanks Mordecai for helping him facing his fears and went to sleep dreaming that he is a tough guy driving the British taxi.