Nick Popovich is a repo man, but not the kind that spirits away Hyundais from suburban driveways. Popovich is a super repo man, one of a handful of specialists who get the call when a bank wants back its Gulfstream II jet from, say, a small army of neo-Nazi freaks. For the past three decades, Popovich has been one of a secret tribe of big game hunters who specialize in stealing jets from the jungle hideouts of corrupt landowners in Colombia, Mexico and Brazil and swiping go-fast boats from Wall Street titans in Miami and East Hampton. Super repos have been known to hire swat teams, hijack supertankers and fly off with eastern bloc military helicopters. For a cut of the overall value, they'll repossess anything.