R. Thomas Cameron is a tough-as-nails 12-year-old who loves Bible heroes. He shares adventures with Jacob, his fast-talking 10-year-old brother. When a sweet old lady who lives next door tells the brothers a secret, they are delighted. Mrs. Withers is a famous painter with a fine collection of jewelry and paintings her greedy nephew and his wife are trying to steal. Two thugs named Fred and Shorty have been hired to do the dirty work. She asks the boys to help her protect her property. Things become dangerous as R. Thomas and Jacob dig up a diamond and sapphire necklace on Beaver Island with Fred and Shorty close behind them. But the boys continue to run the gauntlet between career criminals and their evil employers, spurred on by prayer on the run and the example of Bible greats.