In the new season, Mars Investigations is hired after a spate of killings. Bell has said the new episodes take place in “a much darker world, it’s going to be a bigger world.” Here is the official synopsis:
“Spring breakers are getting murdered in Neptune, thereby decimating the seaside town’s lifeblood tourist industry. After Mars Investigations is hired by the family of one of the victims to find their son’s killer, Veronica is drawn into an epic eight-episode mystery that pits the enclave’s wealthy elites, who would rather put an end to the month-long bacchanalia, against a working class that relies on the cash influx that comes with being the West Coast’s answer to Daytona Beach.”
Joining returning lead Bell are original stars Enrico Colantoni, Jason Dohring, Percy Daggs III, Francis Capra, Ken Marino and Ryan Hansen, while new actors joining the franchise include J.K. Simmons, Patton Oswalt and Bell's The Good Place co-star Kirby Howell-Baptiste.