In the climax of the film, Alice (played by Milla Jovovich) leads a final assault on the Umbrella Corporation’s underground base in Nevada, where she confronts the sinister Dr. Isaacs (played by Iain Glen) and the genetically-enhanced superhuman, the Tyrant.
Throughout the movie, Alice and a group of survivors, including Claire Redfield (played by Ali Larter) and Carlos Oliveira (played by Oded Fehr), have been navigating the post-apocalyptic world overrun by zombies and mutated creatures created by the T-virus. They seek sanctuary in Alaska, where they believe there may be a safe haven from the undead hordes.
In the final moments of the film, Alice infiltrates the Umbrella base with the help of her newfound psychic abilities, acquired through exposure to the T-virus. She engages in a fierce battle with Dr. Isaacs and the Tyrant, using her combat skills and superhuman abilities to overcome her adversaries.
As the battle rages on, Alice gains the upper hand and ultimately defeats Dr. Isaacs and the Tyrant. However, during the chaos, a clone of Alice, created by the Umbrella Corporation, emerges from a chamber, setting up a potential confrontation in future installments of the franchise.
The film ends with Alice and the remaining survivors, having thwarted Umbrella’s plans for world domination, setting out on the road once again in search of a new sanctuary, knowing that the fight against the undead and the Umbrella Corporation is far from over.
Through its intense action sequences and suspenseful storyline, “Resident Evil: Extinction” delivers a thrilling conclusion to the third installment of the “Resident Evil” film series, setting the stage for further adventures and confrontations in the ongoing battle for survival against the forces of evil.