Ello Gov'nor

S2, E1: Mordecai and Rigby watch an old British horror movie Ello Gov'nor featuring an evil ghost taxi. Although it is a low-budget work of fiction Rigby gains a paranoid fear of the evil taxi and believes 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 and beats up the taxi who turns out to be a store employee demanding money for the overdue movie.