In the idyllic town of Hanover, people go in and out of small shops on Main Street, plows clear a path for skaters on Occom Pond, and students at Dartmouth College make their way to class.

The family business gets more complicated — and deadly — in the latest batch of episodes that feature new cast additions like Pardison Fontaine, 'SNL' alum Chris Redd, Sibongile Mlambo and Paul ...