Common Side Effects Season 1: Episode Guide & Ratings

Marshall meets his old high school classmate Frances and lets her in on a world-changing secret.

Marshall's forced on the run as the DEA pursues him.

Marshall seeks advice from his old mentor, Hildy. Copano and Harrington are drawn further into the mystery of the mushrooms obtained at the raid. Frances has gone to Geneva with her boyfriend Nick (and Rick) but can't resist the call of the mushroom.

Marshall buys a plot of land near a chemical waste site with a plan to grow more mushrooms. Meanwhile, Frances rushes home from Europe after a huge development. Copano and Harrington investigate a connection between Marshall and Frances.

Frances and Marshall attempt to grow the last of their mushroom supply, hoping their plan works. Copano and Harrington, surveilling Frances and Marshall, run into danger when confronted by a neighboring BMX gang.