Benedict Arnold, once revered as a hero for his military prowess during the American Revolutionary War, became infamous for his betrayal on this critical day. Throughout the war, Arnold had gained a reputation for his daring tactics and successes, which included heroic actions in battles such as Saratoga. However, Arnold harbored grievances over the treatment he received from Congress and aspired for greater recognition and financial returns for his efforts. These feelings of discontent ultimately swayed him towards treachery.

In a desperate bid to elevate his standing, Arnold conspired with British officials. He offered the plans of West Point, a vital fortification on the Hudson River, to the British in exchange for money and a command in the British Army. Arnold believed that capturing West Point would give the British a decisive advantage in controlling the Hudson River and dividing the American forces. This act was facilitated through a meeting with Major John André, a British Army officer, who was to receive the plans.

Arnold's plot was thwarted when André was captured by American forces. He was found in possession of incriminating documents detailing Arnold's conspiracy. Arnold fled, narrowly escaping capture, and successfully joined the British side, leaving a legacy tainted by treason. This betrayal not only affected battlefield strategies but also severely damaged the morale of the American forces, who trusted Arnold as one of their own.