Poltergeist: The Legacy (1996) : 3x17

Kristin in her continuing quest to find her father enlists Rachel's help. Together the two visit a Sanatorium that leads them to Sommerville. Unknown to them is the fact Sommerville was once a Japanase American concentration camp and that one of its former prisoners is about to imprison them. Rachel and Kristin must work together to form an escape plan while Nick and Derek quickly work from the outside to save the rest of their team.