LOS ANGELES (CBSLA.com) — Something big is coming to Los Angeles!

The popular rideshare app, Uber, will offer users the option to get a ride from the “Transformers” Optimus Prime from 1 p.m. to 7 p.m. Saturday.

For a “chance to roll with a robot in disguise,” users can request a ride by opening the Uber app on their smartphone, selecting the “Autobots” option and setting a pickup location.

“If you’re lucky enough to make contact with Optimus, he’ll roll out to your location for a 15-minute experience,” the company said on its website. “Keep in mind: There’s only one Optimus Prime, so making contact will be difficult and may take many tries. But don’t give up!”

Los Angeles is the last of three cities the leader of the Autobots will make an appearance in.

The company is offering the experience as a promotion for “Transformers: Age of Extinction”, which opens in theaters June 27.