45-year-old John Nolan, a newly divorced man from Pennsylvania, who moves to Los Angeles to become a police officer after witnessing a bank robbery. As being the oldest rookie in the LAPD, Nolan navigates the challenges and dangers of his new career, facing skepticism and prejudice due to his age. The rookies are trained by their TO. Bradford pushes Lucy hard, often giving her difficult situations to learn and grow, Lopez trains West in practical and sometimes unconventional training methods while Bishop trains Nolan by allowing him to lead in the field while also providing guidance and support. Journey explores of self-discovery and growth as he adapts to the demanding world of law enforcement, while also developing personal relationships with his fellow officers and dealing with complex cases.

Bradford and Chen were both on observing like some other police officers. As Bradford was driving the patrol car, the radio responded.