Alice Abernathy

History
Alice Abernathy is a former Umbrella security officer-turned anti-Umbrella activist. Alice was once an Umbrella security operative placed at the mansion to protect the Hive's emergency entrance. Alice was married to Spence Parks; however, it was revealed to be a fake in order to protect the secrecy of the Hive's existence. In Resident Evil, Alice is an amnesiac who wakes up face down on the floor of a shower, with no memory of her identity or her location. Her memory loss was caused when a nerve gas was released into the house by its primary defenses which were activated by the Red Queen when the viral outbreak occurred.

Through the film Alice experiences flashbacks as her memory returns. She meets certain milestones within the Hive's laboratories. One of her first flashbacks occur when she first meets with Spence (who is also suffering the same side effects as her). Though working for Umbrella, it's revealed she was willing to expose Umbrella's experiments to bring the company down. After the full restoration of her memories, she tells Matt that she was Lisa Addison's (Matt's sister's) contact within the Hive. She was trying to help his sister smuggle a sample of the t-Virus out of the Hive in order to help their cause. After the outbreak in the underground lab, Alice and Matt Addison remain the only survivors of the incident. Upon arrival back at the mansion both are seized by Umbrella scientists and taken into quarantine at Raccoon General Hospital. Alice wakes up some time later and escapes the room she was kept in to find Raccoon City destroyed as the virus escaped.

During the viral outbreak in Raccoon City, Alice is released by Major Cain to combat their latest bio-weapon "Nemesis" (a mutated Matt Addison). After escaping the hospital, Alice learns that the t-Virus had escaped The Hive and is now spread into the civil population of Raccoon City, transforming it's citizens into zombies. Alice also discovers that she has been genetically altered by exposure to the t-Virus; her memories of how it happened are blurred and full of missing information. After wandering around the city, Alice senses several survivors; Jill Valentine, Peyton Wells, and Terri Morales are in trouble with a heavy presence of the t-Virus surrounding their location.

When the nuclear strike ordered by Major Cain occurs, the helicopter Alice and the others use to escape is caught by the shock waves from the blast. A pole of some sort inside the helicopter is shaken loose by the blast and spins toward Angela. Alice throws herself in front of the girl and as a result, is impaled by the pole. Alice is only partially aware of the helicopter crash before she dies, catching flashes of the event as it happens. The others pull her from the crash and cover her body. Two hours later, her body is retrieved from the Arklay Mountains by Umbrella scientists, lead by Dr. Sam Isaacs.

3 weeks after the outbreak in Raccoon City, Alice has been taken to a Umbrella facility in Detroit. She wakes from stasis in a tank, with no memory of the outbreak or The Hive. It is revealed that Dr. Sam Isaacs reanimated Alice with a new strain of the t-Virus which gave her telekinetic abilities, making her Umbrella's most successful experiment. When asked about her name or any indication of the incident, Alice's memories return and she responds, "My name is Alice. And I remember everything,". She attacks Dr. Isaacs and his team, demonstrating her newfound abilities; when an Umbrella guard shoots her with a Taser, she remains unharmed by the electrical current and uses the weapon against it's wielder by tossing the wires back at him. During her escape, she somehow detects she is being watched by one of the security guards and is able to kill with a mere glance through the monitors. During her escape, Alice is confronted by a dozen armed soldiers waiting outside, ready to kill her, when Jill Valentine and Carlos Olivera (posing as Umbrella operatives) intervene. During their departure, Dr. Isaacs order the security guards to let them go. He then orders the activation of Project Alice.

(From the Resident Evil Wiki)