Synopsis

A rift forms between Nash and his newly appointed rival, Deputy Chief Max Pettit, who has tasked Cassidy with a perilous undercover operation. The assignment involves infiltrating a ring of synthetic diamond smugglers and a lethal assassin connected to the South African diamond cartel. Meanwhile, Joe attempts to withdraw from his house purchase, while Cassidy and her new partner, Rachel McCabe, begin their work with the S.I.U.