In the climax of the film, Carol Bennell (played by Nicole Kidman) and Ben Driscoll (played by Daniel Craig) manage to find a vaccine that reverses the effects of the alien virus, saving themselves and their son, Oliver, from being assimilated.
Throughout the movie, Carol and Ben discover that an extraterrestrial virus is infecting the population, turning humans into emotionless beings devoid of free will. As they struggle to evade the infected and find a way to stop the spread of the virus, they must also protect Oliver, who is immune to the alien influence.
In the final moments of the film, Carol and Ben administer the vaccine to themselves and Oliver, successfully reversing the effects of the virus and restoring their humanity. They emerge from the chaos of the invasion to find that the world is returning to normal, with the infected being treated and cured.
The film ends with Carol, Ben, and Oliver reunited and driving off into the sunset, hopeful for the future and grateful for their narrow escape from the alien threat. Through its suspenseful and action-packed conclusion, “The Invasion” explores themes of survival, resilience, and the enduring power of love and family in the face of overwhelming adversity.