thames river and then into a getaway van. it's just like a james bond movie, including james bond, played by the scotland yard. >> this gang played for high stakes, and we played for high stakes to catch them as well. >> the outlandish heist is caught by dozens of surveillance cameras set up by a special scotland yard squad that's been tracking the gang for more than four months. the crooks are known to police as the geezer gang, a group led by four lifelong criminals. >> they've never worked. they've just had easy money, led champagne lifestyles, and really they've done very well. >> authorities catch wind of the gang's brazen plan after investigating a botched armored car robbery. the crooks get away from that crime without any cash, but they leave behind clues that lead police to a farm, which is put under round-the-clock surveillance.