"Spies & Alibis is a Co-operative Mystery Game. We are a team of Special Unit Detectives working together to discover which of the Suspects has taken the Government’s Top Secrets. We have to do this before the Spies board the Airplane and get away." (from the game box) Tiles are randomly selected and turned over by players to reveal "eye witness cards", each of which shows an enlarged part of a suspect's face. The players must reveal enough tiles to properly rules out suspects and thereby deduce identity of the spies before the spies depart on the plane. Each time a tile is turned over, there is a chance that it will be a "time flies card" which hastens the planes departure. The game consists primarily of attempting to reveal as many eye witness cards as possible before revealing all 10 of the time flies cards, and then guessing as to the spies' identities.