The Bensons & Their Troubled Inheritance

The Benson family suddenly inherits an estate outside London & a business which designs advanced Maritime Surveillance Systems for the Ministry of Defense. This attracts the interest of foreign powers who want to steal the plans. Martha, Emma and Craig, relocate with their parents to their new home, where Emma, the youngest, gets involved in mysterious incidents involving the butler George. Things hot up when the children find George dead on the lawn and the surveillance systems designs stolen.