[And Unveil the Mastermind] In the thrilling mid-season finale the team goes after a group of sleeper spies that have just been activated and race to stop a slew of assassinations.

Afton Williamson, Amy Hargreaves, Anne Richardson, Christopher Domig, Erinn Ruth, François Arnaud, Heidi Germaine Schnappauf, Logan Smith, Michael Gaston, Mike Doyle, Stephanie Dauman