The Vault

The vault sits on a giant scale beneath a water reservoir. Any weight fluctuation, even a small one, triggers an automatic flood to prevent theft. This is the bank's primary anti-heist mechanism, making the vault nearly impenetrable.

The team discovers this vulnerability while scouting during the World Cup build-up.

Thom uses 500 liters of nitrogen to freeze the scale's sensors, temporarily slowing its weight readings. This creates a narrow window where the vault won't flood when the team enters, allowing them to access the treasure before the system detects the intrusion.

Thom's engineering expertise is established early when he rejects corporate oil jobs.

James was secretly a British intelligence operative tasked with monitoring the heist. During the security breach, he reveals his true allegiance to force Walter to surrender, then escapes while the vault locks down, trapping Thom and Lorraine inside.

James appears as a trusted crew member but has minimal character development, hinting at hidden motives.

Walter deliberately substituted the real Drake coins with fakes before the heist. He keeps the originals, knowing the team would be intercepted. This ensures Walter retains control over the actual treasure location, which he later reveals is buried beneath the Bank of England.

Walter's prior seizure of the Treasure of Guadalupe by Spanish authorities establishes his experience with concealing valuable items.

With the vault flooding and contact lost, Simon climbs onto the scale while holding a radio broadcasting World Cup commentary. His body weight combined with the radio provides the final mass needed to balance the scale, stopping the water flow and allowing the vault to drain.

Simon is the one who freezes the scale initially, making him the logical choice to reverse the process.

The treasure, the hoard of Sir Francis Drake, is buried beneath the Bank of England in London, not Spain. Walter reveals this location in Saint Tropez after the Bank of Spain heist, setting up a new plan targeting the Bank of England during the 2012 Olympics.

The Drake coins describe where to find the treasure hoard, but the actual location is only revealed later.

Thom comes from an oil executive family but explicitly rejects that lifestyle. He pursues engineering instead, seeking meaningful work over corporate wealth. This rejection leads him to accept the mysterious invitation that introduces him to the heist crew.

His independent thinking and engineering brilliance are established before the heist is even proposed.

The 2010 World Cup provides perfect cover, Spain playing the Netherlands in the final creates a nationwide distraction. The team times their operation to coincide with the match, using the celebration and crowd attention to mask their infiltration of the Bank of Spain.

The timeline explicitly places the heist during the World Cup build-up and final.

Lorraine, a con artist, introduces Thom to Walter at an anonymous invitation club meeting. She brings Thom into the operation and serves as a key member of the breach team alongside Thom, Simon, and James during the vault infiltration.

Her con artist background suggests she has met Thom through a deliberate setup.

Walter previously recovered the Treasure of Guadalupe only to have it seized by the Spanish government. The Bank of Spain heist is his opportunity to recover valuable historical treasure that was wrongfully taken from him, making it both a financial and personal vendetta.

Walter's history with Spanish authorities is mentioned when he explains his previous treasure loss.