Based on the children's classic, The Secret of NIMH, this game is based after the events of the movie. A great evil threatens the inhabitants of the Thorn Valley. After the captain of the guard goes missing, along with several artifacts that once belonged to Nicodemus, the mystic, a team of heroic young rats is charged with finding out what happened. As they journey far from home, they stumble upon humans threatening the valley, strange mysteries and monstrous dangers. Can they survive the final confrontation with evil? Find out in this special two session game!