Cheech & Chong are on a mission to siphon gasoline for their next door neighbor's car, which they apparently "borrowed," and continue with their day; Cheech goes to work at a movie studio and Tommy Chong (Tommy Chong) searches for something to smoke (a Roach (cannabis culture)), followed by him revving up an indoor motorcycle and playing extremely loud rock music with an electric guitar that disturbs the entire neighborhood. Cheech Marin (Cheech Marin) gets fired from his job and they go to see Donna (Evelyn Guerrero), a welfare officer and Cheech's girlfriend. Cheech successfully seduces Donna, under her objections, and gets her in trouble with her boss. The doped-up duo are expelled from the building and, in an attempt to find alternative means of income start writing songs like, "Mexican Americans" and "Beaners."