Holly Chou

President Dalton threatens Russia over their role in a sonic attack at the US embassy in Bulgaria. As a result, his mental status is put under question.

A chef and his patrons are poisoned after consuming a menu item tainted with snake venom. Detective Bell's crush on a colleague leads Holmes to a realisation about his relationship with Fiona.

When Laurel returns to Washington, DC to work for her brother, Sen. Luke Healy, she discovers that budgetary disagreements have halted the government and mysterious bugs are consuming the brains of Congress members and Capitol Hill staffers.