Mysterious fires! Cans of poison! Unexplainable vehicle tracks, and a Grandpa about to lose his farm! What can three kids do? If you are the Super Sleuthing Sinclair kids, no mystery is too treacherous, no problem is unsolvable! Abby, Chrysta and Teev don't know the meaning of giving up, but can they save Grandpa's farm and the life of Shadow?