Agents of SMERSH: Secret Mission Cards is a 22 card promo that can replace the use of Fate Cards as your Secret Missions.
Each Secret Mission card contains specific text detailing what that player needs to do to complete the mission at the designated location. You may also, instead, ignore the reward (or suffer the penalty) from a Secret Mission Card to remove an unwanted Status card. Players also receive a reward for each card, unlike Fate Cards, but Secret Mission cards, unlike Fate Cards, do not get replaced.
For more information: http://boardgamegeek.com/boardgameexpansion/160866/agents-smersh-secret-mission-cards