The 118 is called to help a prison riot at Jamestown Prison (Sierra Conservancy Center) - way out of what should be their actual jurisdiction. Jamestown is roughly 330 miles from Los Angeles (a good 5 hours away.)
Mark Pellegrino who plays Mitchell in this episode says his grandfather, father and himself have been in and out of prison like 'it's the family business'. Mark Pellegrino also plays Lucifer in Supernatural where the phrase 'family business' becomes a big deal.