Finally the movie the Secret of NIMH is online to watch in full. The Secret of NIMH lasts a total of an hour and twenty minutes. It is rated G. It is also a 1982 adaptation of the Newbery Medal-winning book Mrs. Frisby and the Rats of NIMH.

In the Secret of NIMH we find a society of genetically altered rats that comes to the aid of a mouse whose family is threatened by civilization. There is a place known as N.I.M.H. (which stands for the National Institute of Mental Health) in which a number of series of experiments are being performed on the rats. Some rats escape and try to live on their own without any dependence on the humans.

Watch the Secret of NIMH Movie Online
Catch it in full via this link