"Food Truckin'" is the fifth episode in Season 2, being the eighteenth episode overall.
While Bob is watching his customers being taken away by food trucks, Randy meets him again. Randy suggests that Bob should buy a food truck, and he reluctantly agrees. He buys it off of Gene's college fund, up until Gene accidentally destroys it with the burner. When he buys it again off of Tina and Louise's college funds, he has trouble finding customers until Randy gives him more advice on how to make his business work.
While the business is slow, Randy tells Bob about the "Lolla-Pa-Foods-A Festival". where he can bring his food truck for hippies. Linda drives recklessly to the festival and angers other food truckers by smashing their mirrors when she drives on the sidewalk. After arrival, business picks up after the kids lie about the free samples, telling them that the burgers are organic, grass-fed, etc. While the customers are enjoying the burgers, Bob gets an overwhelming amazing business, up until the customers start getting angry due to the kids' lies and insults to other food truckers.
Bob wins an award on stage from the festival's chairman, Paul Blinkman, but this angers the customers even more after learning of the lies, so they sabotage Bob's food truck while his family, plus Randy, are hiding from the angry mob. They wait up until nighttime to escape, so they try to tip the food truck back on its wheels. They manage to escape, up until the burner is pressed again. The family and Randy escape the food truck as it explodes and runs into a tree. They now have to walk home, along with Randy's annoyance, thanks to the truck being totaled.
In the end, Teddy is shown waiting outside of the restaurant as a newspaper hits the window of the restaurant. Teddy thinks that it is Bob returning, but realizes that he still has to wait.