Four pairs must track down the yacht of Bond villain Scaramanga (The Man with the Golden Gun). The Controller has ordered them to retrieve a hard drive. Standing between them and success is a boatload of scorpions. For the fastest pairs, there's a £25k prize. But the slowest will be faced with elimination.

Four pairs are in Bangkok for their first mission. The Controller has sent them to Sinn Sathorn Tower (Tomorrow Never Dies) to restore a satellite signal. To succeed they must climb two communications towers perched six- hundred feet above the city streets. For the fastest pairs, there's a £25,000 prize. But the slowest will face elimination.

The remaining hopefuls are in Austria. Three pairs must transport fragile components to the top of the Alps. When their cable car stops mid-air, success is a terrifying tightrope walk away. In Vienna, the others must ride a rollercoaster to locate a device then deactivate it. For two pairs, there's a showdown at the top of a Ferris wheel.

The Controller ramps up the psychological pressure. Six remaining pairs are trapped in a classified location and separated from their teammates. Their mission - escape confinement, clear hazardous obstacles and avoid booby traps to recover precious intelligence on their rivals. But what they must do with that intelligence will be their hardest task yet.

After the events of the previous mission, rivalries are at boiling point. So, the scene is set for a shoot-out. The five remaining pairs must compete face-to-face. Their weapons are duelling pistols, the target a shot glass of tequila. Succeed and they bank £100,000 but two must fight for survival in an epic gladiatorial contest.

The Controller sends the remaining four pairs to Mexico City to search for a key that unlocks a prize of £250,000. But it's the Day of the Dead and a million euphoric revellers stand in their way. To succeed they must forge alliances for the first time and, on the day that the dead return, failure leads to a showdown with a vengeful ghost.

The Controller sends the final three pairs on the most challenging mission yet dive to a shipwreck in shark-infested waters in the Bahamas to retrieve a box, the contents of which will test their 00-agent skills to the max. One pair will be eliminated. For the others, a chance to win half-a-million pounds in an all-or-nothing visit to a casino.

Six pairs have been eliminated. Just two are left standing. At the Vesper Club in the Bahamas, they must hold their nerve in a high-stakes game of cards to determine who will return to London to take on the Controller for one final mission - and a shot at the life-changing one-million-pound prize.