Although they've saved countless lives thanks to The Machine's omniscience, Reese (Jim Caviezel) and Finch (Michael Emerson), along with lethal operative Shaw (Sarah Shahi) and unpredictable cyber-hacker Root (Amy Acker) now face an uncertain future in Season Four. With a second machine - Samaritan - now online, the elusive team now find themselves as targets, hiding in plain sight.
