>>> WE START WITH THE MINISTRY. IT IS A NEARLY BILLION-DOLLAR LAND PURCHASE ON THE EDGE OF THE BAY AREA AND NO ONE KNOWS WHO EXACTLY THE BUYER IS. THE MYSTERY IS GROWING BY THE DAY AND BY THE ACRE. NOW IT IS GETTING THE ATTENTION OF THE MILITARY AND THE FBI. WE ARE TALKING ABOUT SOLANO COUNTY WERE THE SINGLE LARGEST LANDOWNER IS NOW AN LLC BASED IN DELAWARE. THE GROUP CALLED FLANNERY ASSOCIATES, HAS SPENT FOUR YEARS BUYING 52,000 ACRES SOUTHEAST OF FAIRFIELD. THAT INCLUDES PROPERTY SURROUNDING TRAVIS AIR FORCE BASE. THE MILITARY AND CONGRESS ARE INVESTIGATING. >> WE CANNOT FOLLOW THE MONEY. WE DON'T KNOW WHAT THE INTENTIONS ARE BUT WE HAVE SERIOUS CONCERN. THEY ARE IN THE POSITION TO VISIT DISRUPT THE MILITARY OPERATIONS AT THE MOST IMPORTANT AIRBASE, GIVING US TRANSPORTATION INTO THE PACIFIC THEATER. >> THAT IS JOHN GARAMENDI WHO IS TRYING TO FIGURE OUT WHO FLANNERY IS AND WHAT THEY PLAN TO DO WITH THE LAND. THE CONCERN DOESN'T STOP WITH MILITARY SECURITY AS WILSON WALKER SHOWS US, THE MYSTERY ALSO HANGS OVER A SMALL CITY AND JUST ABOUT EVERYONE AROUND. >> WE HAVE HAD THIS PROPERTY SINCE 2000. WE HAVE BEEN HERE 23 YEARS. FOR MARCUS HUNTER IS TALKING ABOUT THE 20 ACRES OF LAND SHE AND HER HUSBAND PURCHASED TO RAISE THEIR CHILDREN. THE LONG LINE OF FARM DOGS. HER QUIET CORNER OF SOLANO IS CHANGING, AT LEAST ON PAPER. >> REPOT A LOT OF PROPERTY WITH WINDMILLS ALREADY. >> Reporter: JUST ABOUT EVERYONE'S NEW NAME OR IS -- THE COMPANY THAT PURCHASE MORE THAN 50,000 ACRES OF LAND , SOME OF WHICH IS BEEN HELD BY THE SAME FAMILIES FOR GENERATIONS. >> SOME HAVE BEEN FORCED TO SELL. IT IS SAD ALL AROUND. NOBODY KNOWS WHAT IS GOING ON. >> AS IT BECOMES MORE KNOWN, THE RESIDENTS ARE GETTING CONCERNED ABOUT WHAT IS HAPPENING. >> Reporter: STUCK BETWEEN THE LANDGRAB AND THE SACRAMENTO LIVER, CITY OF RIO VISTA. >> THEY RECENTLY PURCHASED THIS WHOLE TRACK. >> THE SPREE INCLUDES PROPERTIES UP TO THE EDGE OF THE CITY. THE MAYOR SAID RIO VISTA IS ON THE WAY TO BEING COMPLETELY BOXED IN. >> THIS IS THE MAP THAT WAS IN THE WALL STREET JOURNAL ARTICLE. IT SHOWS ALL THE PARCELS FLANNERY PURCHASED, INCLUDING ALONG TRAVIS AIR FORCE BASE. HERE ARE ALL THESE PARCELS AROUND THE CITY. IT IS DISCONCERTING TO US BECAUSE THE FUTURE WILL BE DEPENDENT ON WHAT THEY DECIDE TO DO WITH THESE PURCHASES. IT WILL BE A LONG-TERM DEAL. THAT IS WHAT IT LOOKS LIKE. >> THERE ARE FOUR THAT WE KNOW FOR SURE HAVE NOT SOLD. THE REST, MOST OF THEM I HEARD HAVE SOLD. >> THEY ARE PAYING WAY ABOVE MARKET. IT MAKES IT HARD TO IGNORE THE MONEY. >> TO HIS PEOPLE THAT HAVE GOTTEN BETWEEN 10 TO 15 YEARS TO STAY IN THE HOUSE IS IN SOME HAVE GOTTEN LIFETIME. >> THAT'S WHAT MAKES ME THINK, WHATEVER THEY PLAN ON DOING, THIS WILL BE A LONG-TERM DEAL. >> WE SPOKE WITH THE PROPERTY OWNERS THAT DID NOT WANT TO APPEAR ON TELEVISION. THEY ALL TOLD A SIMPLE STORY. THE OFFERED A GOOD PRICE WITH FAVORABLE TERMS BY FOLKS THAT WERE GOOD PEOPLE. IT IS HARD TO FAULT THEM. I HAVE YET TO HEAR ANY HARD FEELINGS SUGGESTED BETWEEN NEIGHBORS THAT MADE DIFFERENT DECISIONS. THERE IS A CERTAIN LEVEL OF DISCOMFORT HERE, DRIVEN LARGELY BY THE MYSTERY. >> BECAUSE FLANNERY IS RELUCTANT, EVERYBODY SUSPECTS THE WORST. >> WHAT MIGHT THE COMPANY BE DOING? THE MAYOR AGREES WITH ONE GUEST. >> AT PEOPLE BOUGHT LAND AND ORCHARDS IN SAN JOSE AND SANTA CLARA, THAT WOULD BE WORTH A FORTUNE TODAY. >> I HEARD PEOPLE SAY THEY WANT DEVELOPMENT AND WANT TO BUILD HOUSES. BACK HERE, BETWEEN MY PROPERTY AND HIGHWAY 12, IT IS ALL MARSHLAND. >> AS FOR THE LAND IN THE OTHER DIRECTION ? IT IS DIRT. NOTHING TO GROW WEEDS. >> Reporter: SHE SAID SHE HAS NO IDEA WHAT FLANNERY PLANS TO DO BUT SHE HAS HEARD FROM THEM. >> I HAVE HAD SEVERAL CALLS BUT TURNED THEM DOWN. AS SOON AS THEY SAY THEY ARE FLANNERY, I SEE NO AND HANG UP. I AM NOT GOING TO SELL. THIS IS MY PROPERTY. IT WAS MINE AND MY HUSBAND'S. SINCE MY HUSBAND PASSED AWAY IT IS MINE. I DON'T PLAN ON MOVING. THERE IS NO PLACE BETTER THAN OUT HERE. >> WILSON WALKER JOINING US IN STUDIO. THAT WAS AN EMOTIONAL INTERVIEW. IT SHOWS THE GENERATIONS OF PEOPLE THAT LIVED THERE. A LOT DID NOT WANT TO TALK TO YOU. >> THERE ARE LAWSUITS. ONE OF THEM FILED BY FLANNERY AGAINST A NUMBER OF LANDOWNERS. THE ALLEGATION IS THERE IS A COLLUSION AMONG OWNERS THAT HAVE NOT SOLD THEIR PROPERTY. THE ALLEGATION THAT THEY ARE CHOOSING NOT TO SELL TO INFLATE THE PRICE. A LOT OF PEOPLE CAN'T TALK FOR THAT REASON. THE CONGRESSMAN THAT YOU HEARD FROM HAS SUGGESTED THAT THE LAWSUITS ARE AN EFFORT TO SCARE LANDOWNERS INTO SELLING. WHO HAS ENOUGH MONEY TO GO AGAINST HIGH-POWERED ATTORNEYS. THE MAYOR MADE THE ALLEGATION AS WELL.