Ten daring individuals come together to live out their spy fantasies and attempt to win the ultimate game of espionage, based on a once-secret World War II spy program called STATION S, where America recruited civilians to a remote estate and turned them into SPIES. The group is surprised with an early test of survival, as they are left to find allies amongst a group of strangers. The competition heats up when they must infiltrate a black-tie gala and find a contact after spending 24-hrs surviving in the woods, and the first competitor is eliminated.

Nine competitors remain and face a mission that tests their patience, skill, and fortitude. While they race through a physically demanding course, putting their training on lock-picking to the test, the competitors learn a lesson on how to win the competition. Back at the safe house, suspicions run high over the controversy of a stolen dossier.

The remaining competitors are given false identities and sent on a blind date. When the Assessors turn up the heat on the challenge, will the contestants be able to maintain their aliases? Once back at the house, one competitor attempts to seduce another for advantage in game.

In the final team challenge, the remaining four competitors are split into teams of two and tasked with breaking codes. Will a lack of effort by one competitor set a group up for failure? With entrance into the final mission on the line, all bets and alliances are off, as the competitors fight to the end..