Holmes’ former sobriety sponsor, Alfredo, asks for his help with an illegal endeavor in order to save his brother. Also, Holmes and Watson investigate the poisoning of a biology professor…

Carrie and Al must find the connection between a murdered coast guard officer, a celebrity chef who threw him out of his restaurant and a missing block of C-4 before…

Serena’s world descends into chaos when a former friend, the evil Georgina Sparks returns to town. Nate connects with the last person he expected, Vanessa. Blair hatches a plan to…