I-48 and US 86 are trying to do some different activities by going to places around Highway City, but everyone is busy and everything is closed for a local holiday. So they call a friend to interact with them so they won't get bored.
The series takes you on a journey to a world that is inhabited by highway signs. In this short, it will teach you the "species" of highway signs located by state and the United States.
I-48 and US 86 are planning to leave the California city of Ooscondio and move to Highway City, a big metro city in the Utah/Nevada state line for Interstate and U.S. Route Shields.
I-48 and US 86 try to find a decent restaurant around the city to eat at. They found out that there are two restaurants: one in Intertropolis, one in Routeville.
I-48 and US 86 become construction workers for community service to earn money to get their car out of the impound. But things get complicated when they get separated from each other, turning out worse and ruining their friendship.
I-48 and US 86 realize that they don't have to hang out with each other around town all the time. The Royal Highways are in a meeting with the most important person in the country.
All the Main Interstate Highways are going to the county farm in Arizona to pick up the cheapest meats for the 7-day donation sale. But I-90, who is a vegetarian, refused to go due to her state of staying clean and healthy.
When the Royal Highways heard that the Town Separator is being expended for construction, they become furious because it is run by the agencies of two state department of transportations.
I-75 and I-95 visits an entertainment center in Las Vegas to star in a TV show about a stand-up comedian and a social media star. Later, things turn chaos when they start taking advantage of their show, wrecking their relationship.
US 11 gets his first day on the job as a local weatherman. But when another weatherman gets jealous of US 11's popularity, he threatens to eliminate him.
US 41, the richest member of the Main U.S. Highways, is taking advantage of US 20's paid cash, forcing them both to work together every Monday of the month.
When Officer I-38 is making the HOV lane on Interstate 48 off limits, one of the highway signs marches into I-248 and US 389 to change the law from the Highway City Police Department.
The Main Interstate Highways and the Main U.S. Highways are having trouble keeping up with time when they forgot that Daylight Saving Time has begun and US 20 is the only one who can solve the problem.
When I-48 and US 86 witness an anonymous criminal high-speeding on Interstate 248 and throwing rocks at every exits, they teamed up with the Highway City Police Department to save the metropolis.
I-95 is having a slumber party in her room with her friends from school. But other of the Main Interstate Highways keeps getting their attention to impress I-95's friends with their personal instincts.
In the crossover episode with The Loud House, Lisa Loud accidentally leaves the teleportation portal on for too long while she's sleeping. Later, The Loud Family went to tell Lisa by waking her up that it's still on. Failed to shut down the portal, Lisa and the Louds ends up getting sucked in the portal, transporting them randomly into Intertropolis and Routeville and meeting I-48 and US 86.
.png){kind=link}
