You are members of a Resistance, trying to take down a corrupt government...but there are spies among your group. You need to go on missions to overthrow the government, but you need to make sure you don't put any spies on the missions or else they'll fail.
Can you figure out who the spies are - or if you're a spy, gain the trust of the Resistance members?
Pro Unlimited replayability
While there is little variation game-to-game (there's always going to be 2 spies when 5 or 6 people play the game, the mission sizes are always the same for the same group size...), it's the circumstances that change each time which allow it to be played over and over and over again without losing any excitement.