A continuation of the first two "Ghostbusters" movies from the `80s, this time focusing on a young boy and a young girl. The siblings and their mother, after being evicted from their home, move to a property in Summerville, Oklahoma, that they`ve inherited from their late grandfather. A series of unexplained earthquakes in the small town leads to the children discovering their family`s connection to the original ghostbusters and the secret legacy left behind by their grandfather.