The Mansion Detectives

Tommy Mitchell's grandfather went to prison for something he didn't do, Tommy's father a lawyer committed suicide soon after failing to proof his father was innocent. Tommy, 3 years later, nearly 16 with his friends discover someone broke into his grandfathers closed up mansion looking for something. Tommy always believed his grandfather was innocent and sets out to prove it. The Mitchell mansion has a secret he just knows will prove his grandfather was framed.
Time is running out for his grandfather who is dying in prison. Someone wants that secret buried and forgotten at all cost. Will even kill again if they must.