Quirky Eggheads and Texas Snow Globes: After Dr Sturgis has a nervous breakdown, Mary worries that Sheldon is treading a similar path. Georgie makes a discovery.
The apparent spiking of the citizens of a town in New Jersey puts the BAU on the trail of a poisoner who may not be finished.
When the COVID-19 pandemic hits Seattle, the Station 19 crew leans on each other for support; Andy tries to make sense of her mother's return; a group of teenagers unintentionally starts a wild fire.
Vic rallies the crew to pose for a calendar photo shoot that will support a good cause. Meanwhile, Emmett comes clean to Ben and Sullivan, and shows Andy a softer side.
After Martin's Aunt Bonnie, a feeble cancer patient and nurse, vanishes for several hours, her concerned husband and adult daughters summon Martin to help find her.