Chicago P.d. - Season 10 -

Detective Hailey Upton spent much of the season grappling with her husband's (Halstead) departure and his decision to stay in Bolivia indefinitely. This tension culminated in her removing her wedding ring by the end of the season.

The primary antagonist of the season was , a white supremacist and domestic terrorist. Chicago P.D. - Season 10

Kevin Atwater's relationship with his estranged father, Lew , was explored in depth after Lew's release from prison, with the two working together on multiple cases. The Season Villain and Finale Detective Hailey Upton spent much of the season