Officer Jackson West’s relationship with his new training officer, Stanton, has escalated and he begins to work with Sergeant Grey to find a solution.

Harper and Nolan respond to a bank robbery in progress and realize the motives of the thief run much deeper than just needing money. Jackson and Chen’s first day riding without training officers isn’t what they thought it would be.

Officer Nolan and Officer Chen search for a missing person who may have international ties that puts everyone’s lives in danger. Meanwhile, Harper continues the search for a serial arsonist after responding to a report of an injured cyclist, and Wesley must overcome an impossible task.

Sergeant Grey supports Officer Nolan’s desire to become a training officer and offers to ride with him for the day to get him ready. Meanwhile, Tim and Lucy must manage expectations in their respective relationships as they decide on their plans for Mother’s Day and a romantic vacation.

Officer John Nolan and Officer Celina Juarez are on the hunt for a fugitive after a car incident goes awry. Meanwhile, a past injury comes to haunt Tim and Lucy comes through during his time in need in more ways than one.

Officer John Nolan and Bailey are on the hunt for a mystery gunman after a shooting hits a little too close to home. Meanwhile, Aaron struggles to live within his means and joins Lucy to help Tamara when the mother of a child she babysits goes missing. Elsewhere, Wesley suspects that a judge is taking bribes after he excludes valuable eyewitness testimony from a case.

When a toddler is found at the scene of a crime, John and Bailey must decide whether to let the child go to a shelter for the night or care for her themselves. Meanwhile, when someone from his past returns, Tim disappears and leaves Lucy in the dark.

Officer Nolan and Celina take on a special case; meanwhile, Monica enlists help to identify her attackers. Elsewhere, Lopez and Harper discover a connection to the trail of crimes.