Sierra McClain exited 9-1-1: Lone Star after season 4 last year, and her character's absence in the final season was explained by a new work opportunity onboard one of the Mercy Ships, which operate ...

When Sierra McClain didn’t return for 9-1-1: Lone Star‘s fifth and final season, Grace’s absence was explained by her being off with Mercy Ships, which operates hospital ships that deliver ...

Sierra McClain exited 9-1-1: Lone Star after season 4 last year, and her character's absence in the final season was explained by a new work opportunity onboard one of the Mercy Ships, which ...

Grace's absence when Sierra McClain didn't return was explained with her character off with Mercy Ships.