Since its debut nearly four decades ago, the Rambo series starring Sylvester Stallone has become one of the most iconic action-movie franchises of all time. An ex-Green Beret haunted by memories of Vietnam, the legendary fighting machine known as Rambo has battled small-town prejudice, freed POWs, rescued his commanding officer from the Soviets, and liberated missionaries in Myanmar. In his final mission, Rambo's vengeance is unleashed after an old friend's granddaughter is kidnapped in Mexico.