The protagonist of the "Fake Family" story, David, is a small drug dealer in Denver, USA, who leads a plain but savory life. The objects he sells drugs are mainly ordinary people, such as chefs, businessmen, mothers who raise babies, etc., because he has his own concerns and runs his own small business in a low-key manner, but sometimes he messes up. One night, he and Kenny, a high school boy who lives in the same apartment building, encountered a group of street gangsters who were bullying a girl Casey. Although he knew that in that situation, the good guys were not rewarded, but he still helped the two. The child was involved in a chaotic battle, but because he was outnumbered, he injured himself, and even his possessions such as hidden drugs and belongings were taken away.
Helpless, the already heavily indebted David can only accept his largest supplier boss Brad () task entrusted to him - a group of marijuana from Mexico shipped back to the United States. In order to travel in a low-key and safe manner, David invited several partners to form a fake family called Miller. These partners are the strip girls Rose and Kenny who live in the same apartment building, and the street rebellious girl Casey. A group of four of them drove an RV straight to Mexico, evading border inspections in the name of a family vacation, in order to smuggle 1,400 pounds of marijuana across the border. During this smuggling journey, which was mixed with dark violence and absurdity, the Miller family encountered various ridiculous stories.
