In this exhilarating tale, Zohanele "Zohan" Dvir, an Israeli counter-terrorist commando famed for his remarkable abilities and relentless passion, dreams of leaving the ongoing conflicts of Israel behind. His ultimate ambition is to become a hairstylist for John Paul Mitchell Systems in the United States, a goal his parents staunchly oppose.
To evade his duty of capturing his formidable adversary, Fatoush "Phantom" Hakbarah—a Palestinian militant with extraordinary traits—Zohan stages his own death and secretly transports himself to New York City. The supposed success of Phantom in terminating Zohan garners him significant admiration within the Arab community, leading to the launch of his restaurant chain, "Phantom Muchentuchen."
Once in the vibrant streets of New York, Zohan's pursuit of a job at a local Paul Mitchell salon is met with rejection. A life-altering event occurs when he witnesses a tumultuous traffic incident involving two drivers and a cyclist named Michael. The aggressive driver hurls derogatory anti-Arab remarks at Zohan, prompting him to take action against the perpetrator in a moment of fury.
After this encounter, Michael becomes a friend to Zohan, welcoming him into his home, shared with his mother, Gail. As their friendship flourishes, Zohan meets an Israeli immigrant named Oori, who recognizes him and vows to keep his identity under wraps while guiding him to a neighborhood in Lower Manhattan inhabited mostly by Middle Eastern immigrants.
At Oori's suggestion, Zohan seeks a position at a struggling salon owned by Dalia, a Palestinian woman. Though she initially permits him to merely sweep the floors without pay due to her financial struggles, an unexpected vacancy allows Zohan to demonstrate his hairstyling skills for a customer, leading to a rapid rise in his popularity.
Zohan's newfound fame revitalizes Dalia's business, much to the aggravation of corporate landlord Grant Walbridge, who aims to acquire the property for a mall. Meanwhile, Palestinian-American taxi driver Salim becomes aware of Zohan's true identity and enlists his friends Hamdi and Nasi in a plot to find him. After a failed attempt to rally Hezbollah’s help, Salim contacts Phantom, warning him of Zohan's reappearance in New York.
As Zohan grows fonder of Dalia, he faces emotional rejection based on his military past, leading him to consider stepping back from his responsibilities to protect her from the ongoing ethnic tensions. Unbeknownst to him, this decision leads to a climactic showdown with Phantom at a high-stakes Hacky Sack championship, an event sponsored by Walbridge. Their duel is soon disrupted as Zohan learns that the Middle Eastern community is under siege by unidentified aggressors.
In the midst of chaos and flames, Zohan steps forward to mediate between the rival factions, diffusing tensions. Phantom unexpectedly arrives, yet instead of confronting Zohan, he discovers his brother-in-law unwilling to engage in conflict, swayed by Dalia's steadfast commitment to peace. In a surprising development, Dalia reveals her connection as Phantom's sister, and together, they persuade their brother to join forces with Zohan to face their common foe—an organized group of white supremacists covertly funded by Walbridge.
Against the odds, the unlikely trio triumphs over the arsonists, leading to Walbridge's arrest. However, in a moment of unchecked enthusiasm, Phantom's powerful screams unintentionally devastate the remaining establishments. Yet from the ashes, a sense of unity emerges as Israelis and Palestinians collaborate to rebuild their community into a jointly-owned mall.
In the end, Zohan and Dalia become husband and wife, opening a beauty salon that spreads joy and goodwill throughout the neighborhood. Their parents from Israel come to meet them, embracing Zohan's transformation into a barber and entrepreneur in his new life.
