Brian takes up a job as a drug-sniffing dog for the Quahog police department in order to put some excitement in his life, and is very successful at it. However, a little too much sniffing puts him in rehab, and the Griffin’s must put off their vacation in order to pay for it. But Peter isn’t about to give up vacation that easily, and pretends to be an addict in order to stay at the beautiful rehab center. When Peter gets Brian into trouble, a counselor suggests that he may be the root of Brian’s troubles.