This time Timothy joins his brother-in-law's driving school. Their school is soon in rivalry with a competing school, while Timothy finds himself involved in erotic adventures with his clients, secretary and landlady. His clients are a mix of the inept and the dangerous and, as usual, mayhem ensues. A rugby match is organised between the two schools, at which one of the rival school's instructors unknowingly swallows a powerful aphrodisiac and rampages around the field, an event that leads to the climactic car chase.