S12, E1: In the 12th season premiere, Sam and Kovac report to the police that her diabetic son, Alex (recurring guest star Dominic Janes), is missing and is possibly trying to find his father. The boy mistakenly thinks his dad is in Colorado, but the man is actually incarcerated. Unfortunately, Alex left without his insulin. And Neela, Ray and Abby struggle with their first shifts in charge of the new interns.