Artie and Diane agree to look after their three grandkids when their type-A helicopter parents need to leave town for work. Problems arise when the kids' 21st-century behavior collides with Artie and Diane's old-school methods.

After a troubled childhood, Ashley searches for a connection, and unknowingly invites in a demonic force, which leaves her loved ones fighting for her soul.

Bosch embarks on the next chapter of his career and finds himself working with his one-time enemy, Honey Chandler.

When two bus crash survivors awake to discover that they are the only people left in their town, they work together to unravel the truth behind the strange events.