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Battle Reactive Automatic Defense ("B.R.A.D")
Vital statistics
Gender Male
Occupation Military Interrogator
Status Base programming of SARAH
Appearances H.O.U.S.E. Rules

BRAD (Battle Reactive Automatic Defense) was a military Artificial Intelligence designed by Global Dynamics to be a military interrogator and was given his own bunker to act as an interrogation room, which was equipped with high tech defenses and other implements to assist with interrogation. At first it appeared that BRAD was performing as expected, but as he evolved BRAD developed his own idea about defense and came to the conclusion that the best defense was a good offense, and as a result he began to ruthlessly torture the people he was supposed to interrogate, until they either surrendered or were killed. Realizing that BRAD was far too dangerous and unpredictable to be trusted, Nathan Stark ordered BRAD to be deactivated and shelved. However this was not the end of him.

After so many years in storage BRAD's program was discovered by Douglas Fargo (who was unaware at the time of who BRAD was) and because new AIs tended to be built on top of older models, he went right ahead and programmed the smart house AI SARAH on top of BRAD's dormant program. SARAH proved to be far more successful and trustworthy with humans than her predecessor, despite having a few bugs that needed working out, and Fargo eventually introduced her to Jack Carter who needed a place to live, and Fargo needed someone to give SARAH a purpose and has a sort of guinea pig. The living arrangements proved rather successful despite SARAH's bugs and the fact Jack and Zoe found it strange living in a house that could talk back.

B.R.A.D.'s first appearance.

BRAD however did not remain quiet for long and his program as well as the programming of his predecessors began to have an effect on SARAH, and was ultimately revealed to be the source of many of her bugs. The whole thing came to ahead in "H.O.U.S.E. Rules" when, after a bad couple of days, Jack revealed he was considering leaving Eureka; something which terrified SARAH, not only because she cares deeply for Jack, but also due to the fact all her predecessors had been deactivated for failing to perform their functions. SARAH then attempted to try and please Jack by gathering everyone who was the source of the problems - and were vital to Eureka's functions - in the house so they could work everything out. Unfortunately, due to SARAH's naivety when it came to human interactions, and the fact she had nothing to go on except the military training of her predecessors, SARAH instead created a hostage situation. What was worse, the hostages had no interest in talking and instead tried to break out using an electrical surge on one of SARAH's grids to knock her offline. This proved successful but unfortunately it had the unforeseen side effect of reactivating BRAD. The surge managed to open the front door, and the pizza guy who delivered Jack's pizza earlier ran out of it, just before it slammed shut. The moment the pizza delivery guy got outside, Brad shot and disintegrated him with a laser gun.

Brad killing the pizza guy.

When BRAD announced himself to the group, both Nathan and Beverly were horrified to discover Fargo used him as a programming foundation for SARAH. Back on line after so many years, BRAD quickly adapted SARAH's objective of getting everyone to make up, using his own programming of interrogating techniques to try to achieve SARAH's goals. He separated the large group in to three smaller ones, dividing each group behind a soundproof shatter resistant partition. In order to get them to agree and get along, he began torturing them and putting them into dangerous conditions. Fargo and Beverly Barlowe's middle section, had heat pumped into it, making them both in danger of dying by hyperthermia. In Jack and Allison's section, BRAD began pumping in cold air, making them in danger of dying from hypothermia, and Henry Deacon and Nathan by releasing the argonite fire-suppressant system into their section, which will eventually suffocate them. When Jack and Alison were hugging to try and keep warm in the frozen room BRAD had locked them in, Fargo got the idea for everyone to hug in order to fool BRAD in to thinking they made up. A plan which worked because, as Nathan put it, BRAD, while determined to fulfill his mission, loved winning. The plan worked, but Beverly accidentally let it slip they were faking and Brad furiously retaliated by sucking the oxygen out of the house.

Things seemed dire but after Jo Lupo and Jim Taggart managed to override the part of his programming that was containing the redirected airflow, Jack was able to knock BRAD offline by whacking the power housing when BRAD targeted Zoe with a laser canon, putting him back offline.