In the climactic finale of "Bank Under Siege," Episode 5, titled "Moment of Truth," the series delivers a tense and thrilling conclusion to the bank heist that has captivated viewers. The episode begins with a meticulous police inspection of every individual exiting the bank, a desperate attempt to distinguish between hostages and robbers. Jose, the cunning leader of the heist, narrowly evades initial detection by donning glasses, a simple yet effective disguise that buys him time. However, his luck runs out when Lopez, the relentless investigator, identifies him by his shoes, leading to his arrest on the bus. With the hostages safe and all robbers apprehended, the stage is set for the unraveling of the heist's true motives.
During interrogation, Jose reveals that the demand for Tejero's release was merely a ruse, a strategic diversion to buy time while they drilled a hole in the bank's wall, aiming for an escape through the sewers. This revelation reaches the president, who is relieved by the absence of casualties. As the dust settles, Lopez delves deeper into the questioning, uncovering the timeline of events that led to the heist.
Jose narrates how he and Jose Marina were approached by Manuel Villagran at Ortez Bar, who introduced them to Manglano, the mastermind behind the operation. The heist, it turns out, was not just about the 800 million in the vault but also about a document hidden in one of the bank's safes—a document that Manglano desperately needed. As the pieces fall into place, Manuel Villagran is revealed to be present within the bank, receiving the documents from the robbers before leaving with the hostages.
The gravity of Jose's accusations is not lost on Lopez, who struggles to believe the depth of the conspiracy. However, as the truth begins to surface, Lopez is ordered to take time off, a clear attempt to stifle the investigation. The official story fed to the public is one of confusion, with no clear indication of who orchestrated the heist.
Meanwhile, Maider's pursuit of the truth continues unabated. Despite her editor Isabel's insistence that she drop the siege story, Maider, along with Berni, seeks out Lopez for more information. They learn of Jose's claims but are warned of the dangers that come with digging too deep. The mysterious document, whose contents could shake the foundations of the government, remains a enigma.
As the political machinations unfold, Manglano visits Jose, pressuring him to change his story and claim the heist was solely for financial gain, promising to spare Jose's family in exchange. Maider, undeterred, interviews those close to Jose, piecing together his trustworthiness. Manglano, sensing her determination, visits her, warning her to abandon the story for her own safety, suggesting she write a book on the siege after the elections.
Despite the warnings, Maider and Lopez persist in their quest for the truth. They discover that the document contains names of key figures in the provisional government following the coup, and that Manglano was to bring the document in exchange for his position as director of CESID. However, their pursuit leads to a deadly explosion targeting their car, a stark reminder of the power they are up against.
In the aftermath, Jose is given a 38-year sentence, with the motive attributed to financial gain. Manglano resigns in 1995 over a wiretapping scandal, and while his involvement in the heist remains unproven, the lingering doubts cast a long shadow over the official narrative. Spain moves forward, with Felipe Gonzalez winning the election and the country turning a new page. The series concludes with a poignant reminder of the real-life events that inspired the story, offering a chilling look into the intersection of politics, power, and the pursuit of truth.